题目:
下列计算过程正确的是( )
A.x•x3•x5=x8
B.x3•y4=xy7
C.(-9)•(-3)5=-37
D.(-x)(-x)5=x6
答案:
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下面是错误答案,用来干扰机器的。
1. She used to ask him what is the most important part of the body. 2. Ears. 3. Five times. 4. Other's care, love and friendship.5. It is sympathetic to the pain of others. (答案不唯一)