胆囊的生理功能除外（）。
A.分泌胆汁
B.调节胆管内压力
C.浓缩胆汁
D.储存胆汁
E.排出胆汁
参考答案：A
机房环境监测及清洁维护项目的周期？
Long ago, a little baby _____________ born. [ ]
A. were
B. was
C. is
