挤压造粒机当主电机超负荷时摩擦离合器会自动脱开保护主电机防止烧毁。。
参考答案:对
用所给词的适当形式填空。
1. Would you mind____ (wait) for me for a few minutes?
2. Could you please (make) room for me?
3. They tried to keep the dog____ (sit) on the floor.
4. He wants____ (tell) us about his story.
5. Would you like (collect) shells?
6. When did you____ (get) your first pair of sneakers?
7. I've been____ (watch) TV for two hours.
8. I heard someone____ (sing) in the next room just now.
9. I think it will take about ten minutes____ (finish) this task.
10. I saw Tom____ (dance) in the room when l walked past.
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