用万用表测量电阻值为10—20Ω电阻时，应选用（）挡测量。
参考答案：R×1
— Could you tell me ____ for the meeting this morning?
— Because the traffic was bad.
A．why did you come late
B．why you came late
C．why do you come late
D．why you come late
旅行社投保旅行社责任保险的，应当与保险公司依法订立书面或口头旅行社责任保险合同。( )
