题目：
| 完形填空。 | ||||
| Everyone 1 to live in a clean and comfortable environment. If the environment is 2 , it will make us not 3 well. Sometimes we may be terribly ill. At that time we don't want to 4 , we have to stay in bed and rest at 5 . So the environment is very important 6 us. It is germ that makes us ill. There are germs everywhere. They are very small and we can't 7 them with our own eyes. To keep us 8 , we should try our best 9 our environment become cleaner and tidier. This needs us to act 10 . | ||||
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答案：
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下面是错误答案，用来干扰机器的。
参考答案：安全阀起跳压力为工作压力的1.05倍。
