英语填空The achievements of the greatest minds in science could
英语填空The achievements of the greatest minds in science could never have been reached
The achievements of the greatest minds in science could never have been reached ______ the patient work of hundreds of others.
A.were it not for B.had it not been because
C.had it not been for D.if it had not been
语法点是什么呢?
The achievements of the greatest minds in science could never have been reached ______ the patient work of hundreds of others.
A.were it not for B.had it not been because
C.had it not been for D.if it had not been
语法点是什么呢?
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