在试验过程中发生事故,应由运行人员按照事故处理规程进行处理()
参考答案:对
I can't understand why you all ________ think that I did it. [ ]
A. shall
B. will
C. can
D. should
在浸液二碘甲烷中,下列()宝石突起弱边缘轮廓,模糊。
A.钻石
B.钛酸锶
C.立方氧化锆
D.无色蓝宝石