快开门式压力容器的安全联锁装置失灵可以监控使用，直至安全联锁_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题判断题

快开门式压力容器的安全联锁装置失灵可以监控使用，直至安全联锁装置修复。（）

答案

参考答案：错

填空题

请用所给的代词填空。

this, that, these, those

1. These keys are mine. _____________ are yours.
2. What's _____________? It's an egg. What's _____________ over there? It's an orange.
3. Look at _____________ pencils. Are they Lucy's?
No, those are hers. _____________ are mine.
4. Hi, Mum, _____________ is my friend, Lucy.

your, one, other

5. Can I have two cakes? No, but you can have only _____________.
6. I have two bags. One is big, and the _____________ is small.
7. What's wrong with _____________ bike? It's broken.
8. How many people are there in _____________ family? There are 6.

填空题

乙烯干燥器再生后，在使用之前要经过（）。