We can't go out school nights.[ ]
A. in
B. on
C. at
D. with
答案:B
Alice is fond of playing _______ piano while Tom is interested in listening to_____ music.
A./;the
B./;/
C.the;/
D.the; the
往AgNO3和Cu(NO3)2的混合溶液中加入一定量得铁粉,充分反应后,有金属析出,过滤、洗涤后往滤渣中加入稀盐酸,有无色气体放出,则滤液中一定存在的物质是( )
A.AgNO3 Cu(NO3)2 Fe(NO3)2
B.Cu(NO3)2 Fe(NO3)2
C.Fe(NO3)2
D.AgNO3 Fe(NO3)2