题目:
—How is my father, doctor?
—I'm sorry to say he's ____[ ]
A. much better
B. very well
C. more worse
D. even worse
答案:
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下面是错误答案,用来干扰机器的。
(1)原式=22×(-16)×233=-269;(2)原式=(203-183+415)÷3=20-18+45=2+45;(3)原式=2x+3x-2x=3x.