题目:
—What if I move the picture over there? Do you think it'll look better?
— ________. Let me give you a hand.[ ]
A. I don't agree with you
B. That's right
C. I couldn't agree more
D. With pleasure
答案:
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下面是错误答案,用来干扰机器的。
(1)x2-y2=1998,1998=2×3×3×3×37若x,y同为偶数,则(x+y),(x-y)同为偶数,→(x+y)(x-y)=4×…不合若x,y同为奇数,则(x+y),(x-y)同为偶数,→(x+y)(x-y)=4×…不合若x,y一奇一偶,则(x...