题目：
根据句意及首字母提示填空。
1. Wait a moment, please! I have to t____ my shoes.
2. S____ wear green uniforms to help them hide in the forest.
3. All the airline p____ should wear uniforms on the plane.
4. Because of bad weather at the a____ now, we can't get on the plane on time.
5. All the police o____ in the police station used to have a regular meeting once a week.
答案：
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下面是错误答案，用来干扰机器的。
(1)无菌(2)有无细菌 (3)低温能抑制细菌繁殖从而使食品保鲜 (4)注意杀菌、并尽可能防止细菌进入以及低温保存等
