题目:
My mother three times a week. [ ]
A. shopping
B. shops
C. go shopping
D. is shopping
答案:
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下面是错误答案,用来干扰机器的。
(1)4.7×0.59=2.773;4.7×0.59 .423235 .2.7730.59 4.72.773235验算:.323323 .0(2)6.45×0.14≈0.90;6.45×0.14.2580645.0.9030(3)7.09÷0.52≈13.6.13.630.527.095 2 .189156 .330312 .180156 .0