In our eye, rod cells are responsible for ______, while cone cells are responsible for _______.

Earthquake

Every year earthquakes are responsible for a large number of deaths and a vast amount of destruction in various parts of the world. Most of these damaging earthquakes occur either in a narrow belt which surrounds the Pacific Ocean or in a line which extends from Burma to the Alps in Europe. Some of the destruction is directly caused by the quake itself. An example of this is the collapse of buildings as a result of the quake itself. Other damage results from landslides or major fires which are initiated by the quake.

These are about a million quakes a year. Fortunately, however, not all of them are destructive. The intensity of an earthquake is measured on the Richter Scale, which goes from 0 upward. The highest scale recorded to date is 8.9. Major damage generally occurs from quakes ranging upward from 6.0.

The actual cause of the quake itself is the breaking of rocks at or below the earth&39;s surface. This is produced by pressure which scientists b~lieve may be due to a number of reasons, two of which are the expansion and contraction of the earth&39;s crust and continental drift.

In order to limit the damage and to prevent some of the suffering resulting from earthquakes, scientists are working on ways to enable accurate prediction. Special instruments are used to help people record, for example, shaking of the earth. Scientists are trying to find methods that will enable them to indicate the exact time, location and size of an earthquake.

Certain phenomena have been observed which are believed to be the signs of imminent earthquakes. These include strange behaviors of some animals, the changes in the content of mineral water, etc. The magnetic properties of rocks may also display special pattern before earthquakes happen.

paragraph 2 ______.

A. Earthquakes forecast B. Historical records of earthquakesC. Intensities of earthquakes D. Cause of earthquakesE. Indications of earthquakes F. Damaging earthquakes

paragraph 3 ______.

A. Earthquakes forecast B. Historical records of earthquakesC. Intensities of earthquakes D. Cause of earthquakesE. Indications of earthquakes F. Damaging earthquakes

paragraph 4 ______.

A. Earthquakes forecast B. Historical records of earthquakesC. Intensities of earthquakes D. Cause of earthquakesE. Indications of earthquakes F. Damaging earthquakes

paragraph 5 ______.

A. Earthquakes forecast B. Historical records of earthquakesC. Intensities of earthquakes D. Cause of earthquakesE. Indications of earthquakes F. Damaging earthquakes

Not all damage during an earthquake is caused by ______.

A. the quake itself B. accurate predictionC. damage of property and loss of lives D. a possible earthquakeE. the unusual behaviors of some animals F. the strong behaviors of human beings

Not all earthquakes are strong enough to cause ______.

A. the quake itself B. accurate predictionC. damage of property and loss of lives D. a possible earthquakeE. the unusual behaviors of some animals F. the strong behaviors of human beings

Scientists have been working hard to warn people of ______.

A. the quake itself B. accurate predictionC. damage of property and loss of lives D. a possible earthquakeE. the unusual behaviors of some animals F. the strong behaviors of human beings

Earthquakes can be predicted by observing ______.

A. the quake itself B. accurate predictionC. damage of property and loss of lives D. a possible earthquakeE. the unusual behaviors of some animals F. the strong behaviors of human beings

请帮忙给出每个问题的正确答案和分析，谢谢！

Earthquake

Every year earthquakes are responsible for a large number of deaths and a vast amount of destruction in various parts of the world. Most of these damaging earthquakes occur either in a narrow belt which surrounds the Pacific Ocean or in a line which extends from Burma to the Alps in Europe. Some of the destruction is directly caused by the quake itself. An example of this is the collapse of buildings as a result of the quake itself. Other damage results from landslides or major fires which are initiated by the quake.

These are about a million quakes a year. Fortunately, however, not all of them are destructive. The intensity of an earthquake is measured on the Richter Scale, which goes from 0 upward. The highest scale recorded to date is 8.9, major damage generally occurs from quakes ranging upward from 6.0.

The actual cause of the quake itself is the breaking of rocks at or below the earth's surface. This is produced by pressure which scientists believe may be due to a number of reasons, two of which are the expansion and contraction of the earth's crust and continental drift.

In order to limit the damage and to prevent some of the suffering resulting from earthquakes, scientists are working on ways to enable accurate prediction. Special instruments are used to help people record, for example, shaking of the earth. Scientists are trying to find methods that will enable them to indicate the exact time, location and size of an earthquake.

Certain phenomena have been observed which are believed to be the signs of imminent earthquakes. These include strange behaviors of some animals, the changes in the content of mineral water, etc. The magnetic properties of rocks may also display special pattern before earthquakes happen.

A. Earthquakes forecast

B. Historical records of earthquakes

C. Intensities of earthquakes D. Cause of earthquakes

E. Indications of earthquakes

F. Damaging earthquakes

paragraph 2______.

Earthquake

1 Every year earthquakes are responsible for a large number of deaths and a vast amount of destruction in various parts of the world. Most of these damaging earthquakes occur either in a narrow belt which surrounds the Pacific Ocean or in a line which extends from Burma to the Alps in Europe. Some of the destruction is directly caused by the quake itself. An example of this is the collapse of buildings as a result of the quake itself. Other damage results from landslides or major fires which are initiated by the quake.

2 There are about a million quakes a year. Fortunately, however, not all of them are destructive. The intensity of an earthquake is measured on the Richter Scale, which goes from 0 upward. The highest scale recorded to date is 8.9. Major damage generally occurs from quakes ranging upwards from 6.0.

3 The actual cause of the quake itself is the breaking of rocks at or below the earth's surface. This is produced by pressure which scientists believe may be due to a number of reasons, two of which are the expansion and contraction of the earth's crust and continental drift.

4 In order to limit the damage and to prevent some of the suffering resulting from earthquakes, scientists are working on ways to enable accurate prediction. Special instruments are used to help people record, for example, shaking of the earth. Scientists are trying to find methods that will enable them to indicate the exact time, location and size of an earthquake.

5 Certain phenomena have been observed which are believed to be the signs of imminent earthquakes. These include strange behaviours of some animals, the changes in the content of mineral water, etc. The magnetic properties of rocks may also display special pattern before major earthquakes happen.

A Earthquake's Forecast

B Historical Records of Earthquakes

C Intensities of Earthquakes

D Cause of Earthquakes

E Indications of Earthquakes

F Damaging Earthquakes

Paragraph 2 ______ .

If the buyer are responsible for chartering and payment of freight under FOB, FAS, the unloading fee is borne by (1)( ) sellers/( ) buyers. As for FOB alone, sellers are responsible for loading cargoes. If the charter party provides for Free In, the loading fee is borne by (2)( ) sellers/( ) buyers.

In some cases, intelligent people implementing intelligent policies are responsible for producing a "boomerang effect" ; they actually create more of whatever it is they seek to reduce in the first place. The boomerang effect has been achieved many times in recent years by men and women of goodwill. State legislatures around the nation have recently raised the drinking age back to 21 in an effort to reduce the prevalence of violent deaths among our young people. But such policies seem instead to have created the conditions for even more campus violence. Some college students who previously drank in bars and lounges under the watchful supervision of bouncers (夜总会、酒吧等保安人员) ( not to mention owners eager to keep their liquor licenses) now retreat to the sanctuary of their fraternity houses and apartments, where they no longer control their behaviour—or their drinking. The boomerang effect has also played a role in attempts to reduce the availability of illicit drugs. During recent years, the federal government has been quite successful in reducing the supply of street drugs. As fields are burned and contraband (违禁品) confiscated, the price of street drugs has skyrocketed to a point where cheap alternatives have begun to compete in the marketplace. Unfortunately, the cheap alternatives are even more harmful than the illicit drugs they replace. boomerang: a curved flat piece of wood that can be thrown so as to return to the thrower 回飞镖

Cell Phones

1．Believe it or not，cell phones have been around for over a quarter of a century．The first commercial cell phone system was developed by the Japanese in 1979，but cell phones have changed a lot since that time．The early cell phones were big and heavy but they have developed into small and light palm sized models．There have been huge developments in their functions，too：we have had call forwarding，text messaging，answering services and hands-free use for years，but now there are countless new facilities，such as instant access to the Internet and receiving and sending photos．

2．Cell phones have become very common in our lives：recent statistics suggest as many as one in three people on the planet now have a cell phone，and most of them say they couldn&39;t live without one． Cell phones are used in every area of our lives and have become a necessary tool，used for essential arrangements，social contact and business．They have made it easier to call for help on the highway．They have made it possible to keep in touch with people“on the move”-when people are traveling．

3．Cell phones have made communication easier and have reduced the need for family arguments!We can use cell phones to let our family know we&39;ll be late or if there&39;s a sudden change of plan or an emergency．Cell phones have eased the worries of millions of parents when their teenagers are out late：they can now contact their children at any time．

4．This does not mean that cell phones are all good news．They have brought with them a number of new headaches for their owners：it costs a lot to replace stolen phones，something that is becoming a frequent occurrence，and have you ever seen such huge phone bills?More serious，however，is the potential health problem they bring：there are fears that radiation from the phones may cause brain tumor(肿瘤)． This may be a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can&39;t live without!

Paragraph 1______

A．Cell phones and the family B．Commercial cell phone systems C．Cell phones in everyday life D．Cell phones for teenagers E．History of cell phones F．Problems with cell phones

Paragraph 2______

A．Cell phones and the family B．Commercial cell phone systems C．Cell phones in everyday life D．Cell phones for teenagers E．History of cell phones F．Problems with cell phones

Paragraph 3______

A．Cell phones and the family B．Commercial cell phone systems C．Cell phones in everyday life D．Cell phones for teenagers E．History of cell phones F．Problems with cell phones

Paragraph 4______

A．Cell phones and the family B．Commercial cell phone systems C．Cell phones in everyday life D．Cell phones for teenagers E．History of cell phones F．Problems with cell phones

Nowadays cell phones are equipped with______．

A．a necessity B．an emergency C．a number of new headaches D．family arguments E．big and light palm-sized models F．countless new facilities

Cell phones are common in our lives and have become______．

A．a necessity B．an emergency C．a number of new headaches D．family arguments E．big and light palm-sized models F．countless new facilities

We can use cell phones to communicate with othors when we encounter______．

A．a necessity B．an emergency C．a number of new headaches D．family arguments E．big and light palm-sized models F．countless new facilities

In spite of many benefits，cell phones have brought for their owners______．

A．a necessity B．an emergency C．a number of new headaches D．family arguments E．big and light palm-sized models F．countless new facilities

请帮忙给出每个问题的正确答案和分析，谢谢！

Youworkattheregionalsalesoffice.YouareresponsibleforimportingandexportingdatainSQLServer2005databases.Themainofficeasksyoutosendthematextfilethatcontainsupdatedcontactinformationforthecustomersinyourregion.ThedatabaseadministratorinthemainofficeasksthatthedatabesortedbytheStateProvince，Surname，andFirstNamecolumns.Youneedtosatisfytheserequirementsbyusingtheleastamountofeffort.Whatshouldyoudo？（）

A.SpecifyStateProvince，Surname，andFirstNameintheORDERhintinthebcpoutcommand.

B.Createaformatfilefortheexportoperation.

C.SpecifyStateProvince，Surname，andFirstNameintheORDERBYclauseinthebcpqueryoutcommand.

D.CopythedataintoanewtablethathasaclusteredindexonStateProvince，Surname，andFirstName.Exportthedata.