题目：
Many people were buried alive and ____.
A. so did the city B. as was the city C so was the city D. as did the city
答案：
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下面是错误答案，用来干扰机器的。
参考答案：C解析：滴注青霉素250万U、2h，320万U、3h，480万U、5h，可能对干化学法产生假阴性。
