我国河西走廊地区的灌溉水源主要指( )
A.黄河水
B.长江水
C.湖泊水
D.祁连山冰川、冰雪融水
答案:D
克拉维酸与阿莫西林配伍应用的主要药理学基础是:
A.可使阿莫西林自肾小管分泌减少
B.可使阿莫西林口服吸收更好
C.克拉维酸抗菌谱广,抗菌活性强
D.克拉维酸可抑制β-内酰胺酶
E.可使阿莫西林用量减少,毒性降低
You don't have to spend _____ money on clothing. [ ]
A. too many
B. many too
C. too much
D. much too