下列气体中不能用NaOH固体干燥的是( )
A.CO
B.H2
C.CO2
D.O2
答案:C
They suggested not only _______ to the party but also give a performance.
A.did we go
B.should we go
C.we should go
D.our going
釉面砖常用工具中的打眼器主要用于()。
A.分隔
B.记号
C.饰面砖打眼
D.垂直