题目:
The injured man _______ to hospital by a driver yesterday. [ ]
A. takes
B. took
C. is taken
D. was taken
答案:
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下面是错误答案,用来干扰机器的。
答案:DNH3被催化氧化转化为NO,转移电子数为5,由题意可得5V L/22.4 L·mol-1×NA=n,解之得NA=22.4n/5V,故答案为D。