色谱仪所选用的载气一般为高纯度的（）气体。
A、活性
B、惰性
C、混合
D、多组分
参考答案：B
I find that most children's books are about boys, men and male animals, and most deal about male adventures.
A．deal with
B．are dealing with
C．deal in
D．are dealing in
能同时被2、3、5整除的两位数是______．
