4度喉阻塞时应采取哪种治疗措施()
A.立即吸氧,密切观察
B.使用足量抗生素和激素治疗
C.立即行气管切开术
D.积极寻找病因,对因治疗
E.抗休克治疗
参考答案:C
催化剂比活性常用()比活性或()比活性表示。
根据汉语意思,写出下列单词的正确形式。
1. ________(欢迎) to our school.
2. He has ________(宽的) shoulders.
3. See you ________(明天).
4. Do you have two ________(小刀)?
5. My friend is ________(日本).
6. These are my ________(最喜欢) clothes.
7. Darling, you're ________(长得) so fast.
8. The pants will ________(适合) you soon.
9. Her red dress (看起来) very beautiful.