听力原文：She says she is going to stay up all night studying for the exam tomorrow morning. Wouldn't she be better off getting a good night's sleep so she will feel fresh in the morning？
(28)
A. In my opinion, if she stays up tonight, she'll have better performance in the exam tomorrow.
B. In my opinion, after a night's study, she'll understand better and feel fresh.
C. In my opinion, it's better for her to sleep than not to sleep if she wants to have a clear mind.
D. She and I have the same opinion.
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听力原文：My cousin just called. They didn't manage to get a lift and are stranded at the beach.
(26)
A. My cousin called because they met something strange at the beach and needed a lift.
B. A stranger didn't give my cousin a lift at the beach.
C. My cousin is now stuck in a lift near the beach.
D. My cousin is at the beach now because he couldn't get a lift.
由枯枝落叶→真菌→花鼠组成的食物链属于捕食食物链。()
A. 正确
B. 错误
热带雨林中分布着大量的有花附生植物。()
A. 正确
B. 错误
南美洲没有草原生态系统的分布。()
A. 正确
B. 错误
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