我厂膨胀空气换热器采用()作为冷源.
A.氧气
B.氮气
C.污氮气
D.空气
参考答案:A
---Mum, could you buy me a dress like this?
---Certainly, we can buy ______ one than this, but ______ this.
A.a better; better than
B.a worse; as good as
C.a cheaper; as good as
D.a more important; good as
基于监测货物进出口情况的需要,国务院外经贸主管部门和国务院有关经济管理部门可以按照国务院规定的职责划分,对部分属于自由进出口的货物实行( )管理。
A.非自动进出口许可
B.特殊进出口许可
C.特种许可
D.自动进出口许可