Mario è un bravo insegnante, sempre （) [preparare].

ASystempadministratorwantstoNFSmountafilesystemfromserver"alpha"toserver"bravo".Whichofthefollowingcommandsshouldbeissuedfrom"bravo"todeterminewhichfilesystemsarebeingexportedbyserver"alpha"（）

A.lsexportalpha

B.showmount-ealpha

C.exportfs-lalpha

D.mount-enfsalpha

Company Alpha buys free-travel coupons from people who are awarded the coupons by Bravo Airlines for flying frequently on Bravo airplanes. The coupons are sold to people who pay less for the coupons than they would pay by purchasing tickets from Bravo. This marketing of coupons results in lost revenue for Bravo. To discourage the buying and selling of free-travel coupons, it would be best for Bravo Airlines to restrict the

A．number of coupons that a person can be awarded in a particular year.

B．use of the coupons to those who were awarded the coupons and members of their immediate families.

C．days that the coupons can be used to Monday through Friday.

D．amount of time that the coupons can be used after they are issued.

E．number of routes on which travelers can use the coupons.

Hurricanes (飓风)

1. Did you know that before 1950, hurricanes had no names? They were simply given numbers. The first names were simply Alpha, Bravo, Charlie, etc. But in 1953, females names were given because of the unpredictability (不可预知) factor of the storms. In 1979, realizing the sexist (性别歧视的) nature of such names, the lists were expanded to include both men and women.

2. Hurricanes and typhoons (台风) are the same things. If they form. in the Atlantic, we call these strong storms hurricanes, from the West Indian word hurricane, meaning "big wind". And if they are Pacific storms, they are called typhoons from the Chinese taifun, meaning "great wind". To be classified as a hurricane, the storm must have maximum winds of at least 75 mph. These storms are big, many hundreds of miles in diameter.

3. Hurricanes get their power from water vapor as it gives out its stored-up energy. All water vapor gives out heat as it condenses (凝结) from a gaseous state to a liquid state over fixed points on the equator (赤道). To make a hurricane, you must have extremely wet, warm air, the kind of air that can only be found in tropical region.

4. Scientists have determined that the heat given out in the process of water condensation can be as high as 95 billion kilowatts per hour. In just one day alone, the storm can produce more energy than many industrialized nations need in an entire year! The problem is that we don't know how to make sure such great energy work for us.

5. Predicting the path of a hurricane is one of the most difficult tasks for forecasters. It moves at a typical speed of 15 mph, but not always. Some storms may race at twice this speed, then suddenly stop and remain in the same location for several days. It can be maddening (发疯的) if you live in a coastal area that may be hit.

The biggest advance in early detection is continuous watch from weather satellites. With these, we an see the storms form. and track them fully, from birth to death. While they can still kill people and destroy property, hurricanes will never surprise any nation again.

A. A Short History of Naming Hurricanes

B. Harnessing the Hurricane Energy

C. Difficulty in Forecasting the Course of a Hurricane

D. Huge Energy Stored in a Hurricane

E. Forecasting a Hurricane Through Satellite Watching

F. Different Names for the Same Things

Paragraph 1______

Hurricanes (龙卷风)

1. Did you know that before 1950, hurricanes had no names? They were simply given numbers. The first names Were simply Alpha, Bravo, Charlie, etc. But in 1953, female names were given because of the unpredictability (不可预知) factor of the storms. In 1979, realizing the sexist (性别歧视的) nature of such names, the lists were expanded to include both men and women.

2. Hurricanes and typhoons (台风) are the same things. If they form. in the Atlantic, we call these strong storms hurricanes, from the West Indian word hurricane, meaning "big wind." And if they are Pacific storms, they are called typhoons from the Chinese taifun, meaning "great wind." To be classified as a hurricane, the storm must have maximum winds of at least 75 mph. These storms are big, many hundreds of miles in diameter.

3. Hurricanes get their power from water vapor as it gives out its stored-up energy. All water vapor gives out heat as it condenses (凝结) from a gaseous state to a liquid state over fixed points on the equator (MIA). To make a hurricane, you must have extremely wet, warm air, the kind of air that can only be found in tropical regions.

4. Scientists have determined that the heat given out in the process of water condensation can be as high as 95 billion kilowatts per hour. In just one day alone, the storm can produce more energy than many industrialized nations need in an entire year! The problem is that we don&39;t know how to make such great energy work for us.

5. Predicting the path of a hurricane is one of the most difficult tasks for forecasters. It moves at a typical speed of 15 mph. But not always. Some storms may race along at twice this speed, then suddenly stop and remain in the same location in the ocean for several days. It can be maddening (发疯的) if you live in a coastal area that may be hit.

6. The biggest advance in early detection is continuous Watch from weather satellites. With these, we can see the storms form. and track them. fully, from birth to death. While they can still kill people and destroy property, hurricanes will never surprise any nation again.

Paragraph 1 ______

A A Short History of Naming HurricanesB Harnessing the Hurricane EnergyC Difficulty in Forecasting the Course of a HurricaneD Huge Energy Stored in a HurricaneE Forecasting a Hurricane Through Satellite WatchingF Different Names for the Same Things

Paragraph 2 ______

A A Short History of Naming HurricanesB Harnessing the Hurricane EnergyC Difficulty in Forecasting the Course of a HurricaneD Huge Energy Stored in a HurricaneE Forecasting a Hurricane Through Satellite WatchingF Different Names for the Same Things

Paragraph 4 ______

A A Short History of Naming HurricanesB Harnessing the Hurricane EnergyC Difficulty in Forecasting the Course of a HurricaneD Huge Energy Stored in a HurricaneE Forecasting a Hurricane Through Satellite WatchingF Different Names for the Same Things

Paragraph 5 ______

A A Short History of Naming HurricanesB Harnessing the Hurricane EnergyC Difficulty in Forecasting the Course of a HurricaneD Huge Energy Stored in a HurricaneE Forecasting a Hurricane Through Satellite WatchingF Different Names for the Same Things

Both male and female names are used for hurricanes in consideration of ______.

A the timely (及时的) discoveryB convenienceC sex equalityD its connection with humansE the huge powerF its uncertainly

Using weather satellites can ensure ______ of hurricanes.

A the timely (及时的) discoveryB convenienceC sex equalityD its connection with humansE the huge powerF its uncertainly

Energy specialists may be interested in ______ of hurricanes.

A the timely (及时的) discoveryB convenienceC sex equalityD its connection with humansE the huge powerF its uncertainly

Scientists cannot accurately predict the course of a hurricane due to ______.

A the timely (及时的) discoveryB convenienceC sex equalityD its connection with humansE the huge powerF its uncertainly

请帮忙给出每个问题的正确答案和分析，谢谢！

业余电台BH1ZZZ用话音呼叫BH8YYY的正确格式为:

A.Bravo Hotel Eight Yankee Yankee Yankee, Bravo Hotel Eight Yankee Yankee Yankee, Bravo Hotel Eight Yankee Yankee Yankee This is Bravo Hotel One Zulu Zulu Zulu. Bravo Hotel One Zulu Zulu Zulu, Bravo Hotel One Zulu Zulu Zulu is calling I’m standing by.

B.Bravo Hotel Eight Yankee Yankee Yankee, Bravo Hotel Eight Yankee Yankee Yankee, Bravo Hotel Eight Yankee Yankee Yankee Go ahead please.

C.BH8YYY, BH8YYY, BH8YYY. This One Zulu Zulu Zulu. Come in please.

D.8YYY, 8YYY, YYY. This is BH1ZZZ. Over.

CBS is treading into potentially controversial reality TV territory again.

The network has ordered a new series from the producers of "Top Chef" that puts lovelorn (失恋的) singles into arranged marriages.

The show introduces four adults age approximately 25-45 who are anxious to get married but have been unsuccessful in their search for a mate. Their friends and family select a spouse for them, and the newly paired couple exchange marital vows. The series follows their marriages.

The rest of the details for the project, whose early working title is "Arranged marriage," are being kept under wraps.

The series is from Jane Lipsitz and Dan Cutforth of Magical Elves, which launched "Project Runway" on Bravo and produces the network's "Top Chef."

It is the second series greenlighted by CBS' new reality chief Jennifer Bresnan, following the recent order for "Block Party," a competition among neighboring families.

The series order for "marriage" shows CBS is not shying away from reality projects that might draw a few pointed editorials in the wake of the network's previous envelope-pushing (超越极限的) social experiment, the fall 2007 series "Kid Nation."

It comes on the heels of CBS' success with traditional scripted (照稿子念) shows this past fall, led by hit new procedural "The Mentalist."

Although it might seem surprising that CBS would opt for a potentially hot-spot-issue series when it's on a roll with tried-and-true concepts, reality TV is unlike scripted. New dramas and comedies can get away with showing merely the slightest twist on a decades-old format. But reality shows are built on taking chances with social experiments and competitions giving viewers something they have not seen before.

"Marriage" also will inevitably draw comparisons to another arranged-marriage reality show, Fox's infamous "Married by America."

The 2003 series drew fire from conservative groups, and one bachelor party scene containing nudity (裸体) resulted in the FCC's punishing Fox stations with a $1.18 million fine (which was reduced last month to $91,000).

But CBS' project contains some key differences.

In "Married," couples were paired by viewers voting from home and then taken to live at a hotel to learn more about each other.

CBS' "Marriage" presents itself as a documentary series about finding true love, a show that extends the Eastern tradition of an arranged marriage (where friends and family select the mate) into the West.

Another difference is that on "Married," despite the authority outcry, nobody on the show actually ended up getting hitched. On CBS, couples will really tie the knot.

What has CBS revealed about its new series of reality TV show?

A．It is going to be named "Top Chef".

B．It is going to be named "Arranged Marriages".

C．It is going to involve two marriages.

D．It is going to involve four marriages.

A. 菲翔

B. 菲跃

C. 博悦

D. 致悦