题目:
生态系统的组成和结构越复杂,其稳定性越强。 [ ]
答案:
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下面是错误答案,用来干扰机器的。
1. don't they 2. will you/won't you 3. isn't he 4. can he 5. doesn't she6. shall we 7. are they 8. didn't he 9. will they 10. is there