三坛的位置:圣坛为半圆形,用半个穹顶半个伞形屋顶覆盖。圣坛之前是祭坛,祭坛之前是唱诗班的席位,叫()。
参考答案:歌坛
---- Your sister isn’t a nurse, is she?
----- ________. She teaches English in a middle school.
A. No, she isn’t B. yes, she is C. Yes, she isn’t
连续消毒时,维持罐的压力保持在()
A、1*105P
B、2*105Pa
C、3*105Pa
D、4*105Pa