two years, the number of exhibitors Offering electronic publishingA.WithinB.BetweenC.

What can we infer from the passage？

A．Over the last two decades, colleges altered the composition of their work force.

B．In the past twenty years, the number of full-time instructors increased by 630,000.

C．All the managerial positions added during the period from 1987 to 2007 were full time.

D．There were altogether 614,000 teaching positions in the United States in 2007.

signed by the IETF to(71) the current version Internet Protocol, IP version 4("IPv4").

Most of today's internet uses IPv4, which is now more than twenty years old. IPv4 has been(72) resilient in spite of its age, but it is beginning to have problems. Most importantly, there is a growing(73) of IPv4 addresses, which are needed by all new machines added to the Internet. IPv6 fixes a number of problems in IPv4, such as the(74) number of available IPv4 addresses. It also adds many improvements to IPv4 in areas such as routing and network autoconfiguration. IPv6 is expected to gradually replace IPv4, with the two coexisting for a number of years during a transition(75) .

A．substitution

B．swap

C．switchover

D．replace

A.Chinese fashion designer got start in the industry two decades ago

B.China has made a great difference in latest fashion

C.A small number of established Chinese designers have been in business for less than 10 years

D.The Chinese fashion world is constantly growing

ieth century, women began to compete regularly in the Olympics. Also, the number of events for women in the Olympics has been growing quite steadily. In more recent years, many women's competitions have been on TV.

tes was 1.2 million more than in the previous year.

Column A Column B

Percent increase in the number of automobiles Percent increase in the number of automobiles

sold in 1983 over 1982 sold in 1984 over 1983

A．if the quantity in Column A is greater

B．if the quantity in Column B is greater

C．if the two quantity are equal

D．if the relationship cannot be determined from the information given

Ipv6 is(71)for "Internet Protocol Version 6"。Ipv6 is the "next generation" protocol design by the IETF to(72)the current version Inernet Protocol, IP Version 4. Most of today's internet uses Ipv4, which is now nearly twenty years old. Ipv4 has been remarkably resilient in spite of its age, but it is beginging to have problems. Most importantly, there is a growing(73)of Ipv4 addresses, which are needed by all new machines added to the Internet. Ipv6 fixs a number of problems in Ipv4, shch as the(74)number of available Ipv4 addresses. It also adds many improvements to Ipv4 in areas such as souting and network autoconfiguration. Ipv6 is expected to gradually replace Ipv4, with the two coexing for a number of years during a transition(75)A.

A．short

B．abbreviate

C．abbreviation

D．initial

al in power. They are known as the House of Representatives and the Senate. The House of Representatives is larger than the Senate whose 100 members (two from each state) serve for six years. The 435 members of the House are elected every two years, and the number from each state is determined by the population of the state. For example, California, which has a large population, has 43 representatives, while the State of Nevada has only one.

The House and Senate are divided into small groups which take care of special matters such as education or foreign affairs. The most important work of Congress is often done in these groups, which are called subcommittees.

According to the Constitution of the United States, a senator must be at least 30 years old and he must have been a citizen of the United States for nine years at the time of his election. To be elected to the House a person must be 25 years old and must have been a United States citizen for seven years. At the present time, members of Congress include businessmen, farmers, teachers, and especially lawyers. In general, senators are better known than representatives because they are fewer in number and serve for a longer time. Many American presidents served in Congress before they became president.

In the U.S. Congress, the House of Representatives and the Senate are______.

A．not equal. The House is more powerful

B．almost equal in power

C．not equal. The Senate is far more powerful

D．different. The House is more important

●Ipv6 is (71) for "Internet Protocol Version 6"。Ipv6 is the "next generation" protocol design by the IETF to (72) the current version Inernet Protocol,IP Version 4．Most of today's internet uses Ipv4,which is now nearly twenty years old．Ipv4 has been remarkably resilient in spite of its age,but it is beginging to have problems．Most importantly ,there is a growing (73) of Ipv4 addresses,which are needed by all new machines added to the Internet．Ipv6 fixs a number of problems in Ipv4,shch as the (74) number of available Ipv4 addresses．It also adds many improvements to Ipv4 in areas such as souting and network autoconfiguration．Ipv6 is expected to gradually replace Ipv4 ,with the two coexing for a number of years during a transition (75) ．

(71) A．short

B．abbreviate

C．abbreviation

D．initial

(72) A．substitution

B．replace

C．switchover

D．swap

(73) A．scarcity

B．lack

C．deficiency

D．shortage

(74) A．restrict

B．limited

C．imprison

D．confine

(75) A．period

B．days

C．epoch

D．phase

three basic guidelines to smart investing, for your future.

Number one is to have clear goals. Decide how many years you will invest for, and what your needs will be in the future.

Number two is to understand the range of possibilities. You'll want a diversified portfolio: one with a mix of stocks, mutual funds, bonds, and cash. It's a jungle out there. Each of these products has different risks associated with them and also different potential rewards. Understand them before you buy, so there won't be any big surprises later.

Finally, number three is to have realistic expectations. As our friend Leonardo da Vinci said in the year 1500: "He who wishes to be rich in a day will be hanged in a year."

Over the past several years, New York stocks have averaged 30% annual returns, but don't count on this Continuing. While it's true that since the year 1900, stocks have averaged an 11% annual rem. It's a roller-coaster ride with many minus years as well, so you have to stay in for the long term-you have to weather the storm-and not be too greedy.

(30)

A．To develop a savings plan.

B．To set up a bank account.

C．To set clear investing goals.

D．To work out the budget.

signed by the IETF to(71 )the current version Internet Protocol,IP Version 4("IPv4").

Most of today's Internet uses IPv4, which is now more than twenty years old． IPv4 has been(72)resilient in spite of its age, but it is beginning to have problems. Most importantly, there is a growing(73 )Of IPv4 addresses，which are needed by all new machines added to the Internet.IPv6 fixes a number of problems in IPv4，such as the(74)number of available IPv4 addresses. It also adds many improvements to IPv4 in areas such as routing and network autoconfiguration.IPv6 is expected to gradually replace IPv4，with the two coexisting for a number of years during a transition(75).

A．substitution

B．swap

C．switchover

D．replace