题目内容

Modern theories of the development of stars suggest that almost every star has some sort of family of planets.

A. Y
B. N
C. NG

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Scientists collect radio waves from space in hopes that they might receive planned messages sent by intelligent life on an other world.

A. Y
B. N
C. NG

2型糖尿病的发病是由于E．

病毒性肺炎的主要病理学特征是E．

快速进行性肾小球肾炎的主要病理变化是E．