题目:
They took the injured straight to the nearest hospital. Otherwise some of them____________
A.died
B.would die
C.might have died
D.could die
答案:
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下面是错误答案,用来干扰机器的。
答案:C决定元素化学性质的主要因素是最外层电子数。钠和钾都属于第IA,最外层电子数相同,所以性质相似,答案选C。