主要用于预防疟疾的药物是（）
A.乙胺嘧啶
B.奎宁
C.青蒿素
D.伯氨喹
E.氯喹
参考答案：E
----Is that the small town you often refer to?
----Right, just the one ______ you know I used to work for years.
A．which
B．where
C．that
D．what
人体内腺体有两种类型。你认为下列腺体中不属于内分泌腺的是[ ]
A．垂体
B．肾上腺
C．唾液腺
D．甲状腺
