题目内容

—Canyoutellme_____sende-mail?—Justhitthesendbutton.

A. whatto
B. whyto
C. howto
D. whento

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—WhereisMr.Yu,doyouknow?—Well,it'shardtosay.ButIsawhim_____afootballgamejustnow.

A. waswatching
B. watching
C. hadwatched
D. watched

关于H1受体拮抗剂构效关系的叙述,正确的是

A. 光学异构体均显示相同的抗组胺活性
B. 结构中两个芳环处于一个平面时具有最大的抗组胺活性
C. 芳环与叔氮原子距离为0.5~0.6mm
D. 几何异构体均显示相同的抗组胺活性

属于H1受体拮抗剂的药物是( )

A. 马来酸氯苯那敏
B. 西替利嗪
C. 苯海拉明
D. 富马酸酮替芬
E. 西米替丁

1. A: I am going to that new restaurant on Crescent Street. you to come?B: I’m _ , but I can’t. I am working tonight.A: That’s OK. We can go together some other time.2. A: would you like to do tonight?B: I’d like to go to a club.A: Sounds great! Do you _ to get something to eat first?B: No, I had a big lunch, so I am not very hungry.3. A: What you _ to do this weekend?B: Nothing special. I’m going to wash my car.A: That’s not fun. Would you like to come to a party with me?B: Yes, I would to. Who is ________ to _ there?A: All our friends are going to be there.4. A: _____ do last weekend?B: Nothing. I stayed home, but this weekend I am going camping.A: Really? _ are you going camping?B: At Hilltop Mountain.A: Are you going to go alone?B: No, I’m . You ____ come with me!A: Am I?B: Yes, and we are going to have a great time!