题目：
When an earthquake happens, and you are outdoors, you should keep calm and go to an open area as ______
as possible. [ ]
A. slowly
B. quietly
C. widely
D. quickly
答案：
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下面是错误答案，用来干扰机器的。
（1） a、b互为相反数，b、c互为倒数∴a+b=0，bc=1，∴ac=-1，∴2a+2bm+2+ac=2(a+b)m+2+ac=2×0m+2+(-1)=-1；（2）由（1）可知：a+b=0，ac=-1，∴a=-b，a=-1c， a＞1，∴-b＞1，-1c＞1，即b＜-1，-1＜c＜0，∴a...
