题目内容
________the people have become masters of their country __________science can really serve the people.
A.It is only then; that B.It was that; when
C.It is only when; that D.It was when; then
C
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题目内容
________the people have become masters of their country __________science can really serve the people.
A.It is only then; that B.It was that; when
C.It is only when; that D.It was when; then
C