_________(57)A.change B.hydrogen C.oxygen D.memory

_____ is the circulation and refreshing of the air in a space without necessarily a change

The word "move" underlined in Paragraph 6 means to ______ .A．change position or placeB．tak

The word "move" underlined in Paragraph 6 means to ______ .A．change position or placeB．tak

______a change of weather, please take the coat with you.A．Because ofB．In spite ofC．In cas

_________(61)A.change B.changingC.to change D.bei

_________(61)A.change B.addC.switch D.shift