汽化室的作用是将样品瞬间汽化为()。
A、固体
B、液体
C、气体
D、水汽
参考答案:C
It’s the love and responsibility that have driven him to ___ many hardships and survive.
A.go into
B.go through
C.look through
D.look into
急性链球菌感染后肾小球肾炎的前驱感染病源为()
A.A组β溶血性链球菌
B.绿色链球菌
C.肺炎球菌
D.金黄色葡萄球菌
E.流感杆菌