题型:判断题 下列各组离子在溶液中能大量共存的是A.K+、Na+、SO42-、CO32-B.NH4+、Na+、SO42-、OH-C.H+、K+、HCO3-、Cl-D.Al3+、K+、OH-、NO3- 查看答案
题型:判断题 —I didn't see her yesterday. —Of course, you ______, because she had gone to a trip.A. can't B. may not haveC. can't have D. mustn't have 查看答案