单项选择题

Consumers deprived of the information and advice they needed were quite simply ______ very cheat in the marketplace.

A．at the mercy of
B．in lieu of
C．by courtesy of
D．for the price of
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单项选择题
I would never have______a court of law if I hadn t been so desperate.
A．sought for
B．accounted for
C．turned up
D．resorted to
单项选择题
Both police officers and high officials here are susceptibleto corruption.
A．sustainable
B．suspicious
C．skeptical
D．vulnerable
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