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问题 单项选择题

国际市场上的普遍规律是()的强势品牌占据着()的市场。

A.20%，80%

B.30%，70%

C.40%，60%

D.80%，20%

答案

参考答案：A

解析：国际市场上的普遍规律是20%的强势品牌占据着80%的市场。

单项选择题

当IP控制寄存器的值为02H时，中断优先次序是（）

A、外中断0、T0、外中断1、T1、串行口

B、T0、外中断0、外中断1、T1、串行口

C、外中断1、外中断0、T0、T1、串行口

D、T1、外中断0、T0、外中断1、串行口
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单项选择题

Congress makes the laws in the United States. It has two parts, which are more or less equal 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.

Which of the following is true

A. A representative serves for two years.
B. To become a senator is easier than to become a representative.
C. A senator performs his duties for a shorter time than a representative.
D. All presidents were representatives and then senators before becoming president of theUnited States.
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