I know Ms.Hamilton's handwriting.She always writes beautifully.This handwriting is so ba So I believe this ( ) be hers. A、shouldB、must notC、can notD、can
I know Ms.Hamilton's handwriting.She always writes beautifully.This handwriting is so ba So I believe this ( ) be hers.
A、should
B、must not
C、can not
D、can
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I ____ the movie ____ one of the worst I've ever seen. A、think...asB、regard...asC、believe...asD、know...as
能共存于酸性溶液中的一组离子是A.K+,I-,SO42-,MnO4-B.Na+,Zn2+,SO42-,NO3-C.Ag+,AsO43-,S2-,SO32-D.K+,S2-,SO42-,Cr2O72-
在BaSO4饱和溶液中,加入Na2SO4(s),达平衡时A.c(Ba2+)=c(SO42-)B.c(Ba2+)=c(SO42-)=[Kθsp(BaSO4)]1/2C.c(Ba2+)¹c(SO42-),[c(Ba2+)/cθ]·[c(SO42-)/cθ]=Kθsp(BaSO4)D.c(Ba2+)¹c(SO42-),[c(Ba2+)/cθ]·[c(SO42-)/cθ]¹Kθsp(BaSO4)