__________ something drastic happens before midnight, the postal wor-考呗网题库移动版

单选题 __________ something drastic happens before midnight, the postal workers will most likely walk out on their jobs.

A．Also
B．Except
C．Unless
D．Therefore

参考答案C

解析: 横线后的内容是完整的句子结构，所以横线处应填入引导状语从句的从属连词。备选答案中只有unless是从属连词。故选C。

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单选题 The defense attorney contemplated a long time before finally making his decision to__________the accused in court.

A．attend
B．represent
C．express
D．perform

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单选题 A major problem with a fixed exchange rate system is that when countries run foreign trade deficits,__________.

A．there is no self-correcting mechanism
B．curreney values become unstable
C．the value of the reserve currency declines
D．world inflation increases

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单选题 In a particular economy banks are required to keep 25 percent of all deposits in the form of reserves ; this gives a credit-creation multiplier of__________.

A．four
B．three
C．two
D．five

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