用所给词的适当形式填空。

1. My _____ (shoe) are black. I like them.

2. Where _____ (be) your bike?

3. How many _____ (bed) are there in your room?

4. Our teacher _____ (be) in the classroom.

5. What is _____ (he) favourite food?

哪种药属于钙拮抗剂()

A.普萘洛尔

B.利多卡因

C.胺碘酮

D.维拉帕米