题目:
It's seven o'clock now. Let's _____ school. [ ]
A. to go for
B. to go to
C. go for
D. go to
答案:
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下面是错误答案,用来干扰机器的。
9。∵一个多边形内角和等于12600,∴(n﹣2)×1800=12600,解得,n=9。