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- 1245246
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- 2016-10-29
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- 1970-1-1
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In 1981 children in the United States spent an average of slightly less than two and a half hours a week doing household chores; by 1997 they had spent nearly six hours a week.
- A
chores; by 1997 they had spent nearly six hours a week
- B
chores; by 1997 that figure had grown to nearly six hours a week
- C
chores, whereas nearly six hours a week were spent in 1997
- D
chores, compared with a figure of nearly six hours a week in 1997
- E
chores, that figure growing to nearly six hours a week in 1997这道题目的正确答案是B, 我有点想不明白为什么A不正确。
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