停工区内瓦斯浓度达到3％不能立即处理的，必须在24h内（）。A、_爱下问搜题

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问题单项选择题

停工区内瓦斯浓度达到3％不能立即处理的，必须在24h内（）。

A、封闭

B、排放

C、抽放

答案

参考答案：A

填空题

从方框内选择适当的单词并用其正确形式完成句子

be difference do look million person run well-known

1. Project Hope has paid for the education of __________ of poor students since it was set up in 1989.
2. They can't be twins because they look __________.
3. He preferred __________ after his naughty son rather than go shopping.
4. Her mother made her __________ some reading every day during the summer holidays.
5. It's not surprising that everyone has their __________ character.
6. The book tells people how to choose the right __________ shoes.
7. You know, the number of those big name companies __________ very small.
8. Zhang Yimou is a __________ director (导演) in China.

填空题

医院对所有需要消毒或灭菌后重复使用的诊疗器械、器具和物品由消毒供应中心回收，（）清洗、消毒、灭菌和供应。