题目内容

Protestors demonstrated in the capital to show their dissatisfaction with__________.

A. the country's economy
B. the government's efforts to improve economy
C. restrictions on banking withdrawals
D. the high unemployment rate

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The main structure of a nuclear family consists of

A. one father, one mother and children
B. grandparents, parents and children
C. wives, husbands and their relatives
D. sisters, grandparents and aunts

信号f(6-3t)表示( )。

A. ( f(3左移6
B. ( f(3左移2
C. ( f(3右移6
D. ( f(-3右移2

一个物体受到两个共点力的作用,无论是在什么情况下,其合力( )。

A. ( 一定大于任意一个分力
B. ( 至少比一个分力大
C. ( 不大于两个分力大小的和,不小于两个分力大小的差
D. ( 随着两个分力夹角的增大而增大

Because of the high blood pressure, the doctor advised him to ______ from smoking.

A. constrain
B. restrain
C. refrain
D. remain

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