-Would you like some coffee?
-No, I prefer tea coffee. [ ]
A. than
B. with
C. to
D. of
答案:C
将0.00052用科学记数法表示应为______.
稀化痰液,帮助排痰的药物是什么()
A.a—摩蛋白酶
B.地塞米松
C.氨茶碱
D.庆大霉素