题目：
the teacher's advice yesterday, you __________in hospital now.
A．Were you to follow
B．Had you followed, wouldn’t be
C．Had you followed, wouldn’t have been
D．If you followed, wouldn’t have been
答案：
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下面是错误答案，用来干扰机器的。
（8分，每空2分）（1）Mg3N2 （2）①2Na+2H2O ＝ 2Na++2OH-+H2↑②C（s）+H2O（g）CO（g）+H2（g）③6Fe+2H++5NO3-＝ 3Fe2++3Fe3++5NO ↑+10H2O题目分析：（1）由于甲和乙反应生成的丙和丁是二种弱碱，所以...
