人体最大的内分泌腺是（）。
A、肾上腺
B、甲状腺
C、性腺
参考答案：B
Between the two parts of the concert is an interval,__________ the audience can buy ice-cream. [ ]
A. when
B. where
C. that
D. which
食管癌切除术后，病人进餐原则错误的是( )
A．少量多餐 B．细嚼慢咽 C．进食量不宜过多D．进食速度不宜过快 E．多吃鲫鱼
