与酸性较强的中药合用后可降低药物疗效的西药有
A.胃蛋白酶合剂
B.阿司匹林、水杨酸钠
C.氨茶碱、胃舒平、乳酸钠
D.磺胺类
E.扑热息痛
参考答案:C,D
学校要买一些乒乓球,每个3元,甲商城打九折,乙商厦“买八送二”,丙商场满100元还30元现金,学校想买200个,算一算:到哪家购买较合算?
The students can't go out ________ school nights, but they can ________ Saturdays and Sundays. [ ]
A. in; in
B. on; on.
C. in; on
D. on; in