选择题:By the end of 2020 China _____ much stronger and r

题目内容:
By the end of 2020 China _____ much stronger and richer. ( )(本题2.5分)
A、 is becoming
B、 will have become
C、 will become
D、 would become
参考答案:

15. 下列哪种情况不是产前诊断的指征( )(本题2.0分)A. 有原因不明的多次流产史或死胎史的孕

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