30． the people have become masters of their own country that science can really serve the people. A．...
2023-01-07 09:36:47 148次 河南省开封市2010届高三下学期第一次模拟考试单项选择 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
30．
the people have become masters of their own country that science can really
serve the people.
A．Only
then B．It is only when C．Only
when D．It is only then
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