营养不良主要缺乏的是
A．热量和(或)维生素B．热量和(或)脂肪C．热量和(或)蛋白质D．维生素A缺乏E．维生素D缺乏
参考答案：C
位于腹膜后间隙的是（）
A.甲状腺
B.甲状旁腺
C.肾上腺
D.垂体
E.胸腺
15. The hiding man made a hole in the wall ______ he could observe the outside.
A．in which
B．by which
C．through which
D．with which
