问题
问答题 简答题
通风机的作用是什么?
答案
参考答案:
矿井通风机设备的作用是不断向井下输送足够的新鲜空气,稀释和排出各种有毒、有害入放射性气体和粉尘,调节矿内气候条件,改善工作环境,保证井下工人的安全健康。
通风机的作用是什么?
参考答案:
矿井通风机设备的作用是不断向井下输送足够的新鲜空气,稀释和排出各种有毒、有害入放射性气体和粉尘,调节矿内气候条件,改善工作环境,保证井下工人的安全健康。
从方框中找出与各句相对应的答语。 | |
( )1. Would you mind closing the door? ( )2. Would you mind not smoking here? ( )3. Would you please pass me that book? ( )4. Would you like to do me a favor? ( )5. Would you go to the park with your mother? ( )6. Thank you for sending me the nice present. ( )7. Shall we go and have a look? ( )8. Would you like some bananas? | |
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1. 2. 3. 4. 5. 6. 7. 8. |