A、absorption method
B、adsorption method
C、condensation method
D、membrane separation method
A、absorption method
B、adsorption method
C、condensation method
D、membrane separation method
A、We worked with the workers there and learned a lot from them.
B、There are only two windows in that room.
C、He said that he would do better in his English study.
D、I have two brothers.
A、They live in that large house / on the other side / of the bridge.
B、In the morning / the boy / goes to school early.
C、It is very important / for us / to take part in morning exercise.
D、It is good / for you / to help each other in daily life.
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