题目

I don't know her and I don't ______ .     A. want              B. want to          C. want it            D. to want 答案：B20．下列物质中，能使溴的四氯化碳溶液和高锰酸钾酸性溶液都褪色的是（　　）A．甲烷B．乙烯C．苯D．甲苯