1. These students were having academic problems (A) because they spent large amounts of time on school sports and too little time studying (B1) / because of the amount of time they spent on sports (B2).
个人认为: 推理B1/B2->A
2. No students who do well academically spend time on sports.
A: students do well academically B: students do not spend time on sports.
推理:A->B
大家的见解如何呢?
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