下列物质溶于水后，能形成无色溶液的是[ ]
A．高锰酸钾
B．氯化钠
C．汽油
D．面粉
答案：B
John _____ have said such a thing about you. He never speaks ill of you behind your back. [ ]
A. needn't
B. might not
C. can't
D. mustn't
人民法院审理行政案件，对具体行政行为是否合法进行审查。( )
