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单选题
The accuracy of scientific observation and calculations is always at the mercy of the scientist’s timekeeping methods.
A
under the control of
B
within the kindness of
C
beyond the reach of
D
out of the control of
参考答案
参考解析
解析:
固定搭配。句意:科学观测和计算的准确度通常由科学家的计时方法所决定的。at the mercy of在该句指“受…支配”,与under the control of (受…的控制)表达意思相符。
固定搭配。句意:科学观测和计算的准确度通常由科学家的计时方法所决定的。at the mercy of在该句指“受…支配”,与under the control of (受…的控制)表达意思相符。
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