通过水可引起各种传染病,因为水极易受到的污染是()
A.土壤
B.尘埃
C.空气
D.人与动物粪便和各种排泄物
E.雨水
参考答案:D
Keep quiet, please. We're not allowed _____ much noise in the reading room. [ ]
A. to make
B. making
C. to making
D. make
下列镇静催眠药中对癫痫有效的是
A.奥沙西泮
B.甲丙氨酯
C.氟西泮
D.地西泮
E.氯硝西泮