题目内容

若在一区间上,曲线总在它每一点的切线上方,则曲线在这区间是( ).

A. 递增
B. 上凹
C. 递减
D. 上凸.

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In U.S.A.,the power to enforce and interpret the laws is the responsibility of ( )

A. The Judicial Branch
B. The Executive Branch
C. The Legislative Branch

In U.S.A.,the power to make new laws is the responsibility of ( )

A. The Judicial Branch
B. The Executive Branch
C. The Legislative Branch

A bill is:

A. The written text of a proposed law
B. Only a member of the House of Representatives can introduce a bill
C. A member of either the House of Representatives or the Senate can introduce a bill
D. A bill is not yet a law

Which statement is correct?

A. To become a law, a bill must be approved by both the House of Representatives and the Senate
B. To become a law, a bill approved by Congress must also be approved by the President
C. If the President refuses to approve a bill, this bill will goes back to Congress
D. If the President vetoes a bill, this bill will not become a law forever

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