CT机房的相对湿度应保持在( )
A.20%以下
B.20%~35%
C.40%~65%
D.70%~80%
E.80%以上
参考答案:C
Your sentence is ________ if you haven’t left out “an”. Next time pay more attention.
A.perfect
B.specific
C.particular
D.slight
嗜碱性点彩红细胞