化学源于社会又服务于社会,通过化学的学习,你是否对身边的物质有了新的认识,下列物质中,不属于溶液的是( )
A.泥水
B.硬水
C.矿泉水
D.生理盐水
答案:A
—Jack ________ride a motorcycle to work.
— Yes, but now he ________ there as motorcycles are not allowed on our city streets.
A.used to; is used to walk
B.was used to; is used to walking
C.was used to; is used to walk
D.used to; is used to walking
保险责任开始前,投保人申请解除保险合同应承担多少手续费?