According to the research in Passage 1， about 20 hours per week is the safe amount of working time that done not affect school performance significantly.
A.正確
B.錯誤
正確答案：錯誤
題目：According to the research in Passage 1， about 20 hours per week is the safe amount of working time that done not affect school performance significantly.
關鍵字：智慧樹
相關試題
1.What are the functions of signal words？
2.“As” in paragraph 1， Passage 2 serves to signal the cause for the debate over who pays for the cost of college education.
3.As the cost of attending college has soared over these years， a vigorous debate emerges（）who should pay for college.
4.Someone is trying to（）the relationship between you and me.
5.Bit（）bit， he is improving， but he still has a long way to go to win the contest.
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