题目: 找出划线部分读音与其他三个不同的选项。( )1. A. have ( )2. A. minute ( )3. A. too ( )4. A. where ( )5. A. shoe B. take B. listen B. football B. what B. sheep C. cake C. light C. zoo C. which C. sky D. classmate D. thing D. broom D. who D. sure 答案: 1-5 ACBDC
题型:选择题 将NaCl和NaBr的混和物mg溶于足量的水配成500mL的溶液A,再向其中通入足量的氯气,充分反应后蒸发至干,得干燥晶体(m-2)g,则A溶液中Na+、Br-、Cl-的物质的量浓度之比不可能为 [ ]A.3︰2︰1 B.3︰1︰2 C.4︰3︰1D.3︰1︰4 查看答案