涎腺的实质的组成成分为（）。
A.小叶间隔
B.被膜
C.腺泡
D.导管
E.纤维结缔组织
参考答案：C, D
They were naughty then. Now they__________________cute. [ ]
A. are
B. were
C. was
标准状态规定的温度、压力是多少？
