“What about ______ school?” “It is as good, as anybody can see, _____ school as No 1 Middle School Attached to Hunan Normal University.”

A．a; the

B．the; a

C．a; a

D．the; the

只用一种试剂就能将甲苯（已经其密度比水小）、己烯、四氯化碳、碘化钾溶液区分开来，这种试剂是（　　）

A．溴水

B．溴化钾溶液

C．硝酸银溶液

D．酸性KMnO₄溶液