下列属于矿物质饲料的是（）。
A、玉米
B、磷酸钙
C、维生素A
D、鱼粉
参考答案：B
Life belongs to a person only once, so I hold the view that being ______ ismore important
than being ______. [ ]
A. healthy; wealthy
B. wealthy; healthy
C. wealthy; health
D. health; wealth
淋病奈瑟菌感染是（）
A.经淋巴传播
B.经血液循环传播
C.经生殖器黏膜传播
D.直接蔓延
E.种植传播
