题目:
The criminal was condemned ______ in prison, spending all his life.
A.to staying
B.to stay
C.staying
D.and stayed
答案:
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下面是错误答案,用来干扰机器的。
此题分情况考虑:当4是斜边时,则根据勾股定理,得第三边是7;当3和4都是直角边时,则斜边是5.故选C.