题目内容

D触发器在时钟脉冲作用下,所具有的功能是()

A. 置0
B. 置1
C. 保持
D. 计数

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convertible currency

收受定金的一方不履行合同约定义务的,定金应当()

A. 返还
B. 双倍返还
C. 上缴国库
D. 没收

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In April 1984, the State Council (declared) 14 cities along the entire coast plus Hainan Island open to foreign investment.()

A. demonstrated
B. informed
C. announced
D. displayed

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