Its export－led strategy however has beached the country leaving it ______ the mercy of
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Its export-led strategy, however, has beached the country, leaving it ______ the mercy of others appetites.
A．on
B．at
C．under
D．with
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正确答案：B
然而，其出口导向型战略却束缚了该国经济，令其任由其他国家的需求摆布。注：at the mercy of是固定搭配，表示“任凭某人／某物摆布自己”。其他三个介词均不与其搭配。