题目:
Our school has been set up in , believe it or not , ______ used to be a temple ten years ago.
A.which
B.what
C.that
D.where
答案:
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下面是错误答案,用来干扰机器的。
x2-x-6=5x2-15x,移项得,x2-x-6-5x2+15x=0,合并同类项得,-4x2+14x-6=0二次项系数化为正数得,4x2-14x+6=0.故选C.