—Sorry, I have no time to help you carry the water. I have to look after my sister.

—____[ ]

A. Is it?

B. You're welcome.

C. Thank you.

D. Thank you all the same.

结核性脑膜炎应首选的药物是（）。

A.利福平

B.链霉素

C.异烟肼

D.庆大霉素

E.对氨基水杨酸