PSA开工正常后要投用解吸气火嘴,()解吸气火嘴手阀。
参考答案:全开
根据句意,写出括号内所给单词的适当形式
1. After drinking the cup of coffee, he felt even _________. (sleep)
2. Look, the children are trying to catch _________ (butterfly) on the flowers.
3. I have got toothache, so I must go to the ______________. (dentist)
4. We think more public activities will help change his ____________ life. (active)
下列选项中,()不属于法定职业病。
A、尘肺
B、中暑
C、咽炎