甲乙两地相距50km,在甲乙两地之间沿直线架设了两条输电线,已知输电线的电阻与其长度成正比,现输电线在某处发生了短路,为确定短路位置,甲乙两地检修员先后用相同的电源和电流表做成的测量仪如图,进行了如下测量,将测量仪接入ab时,电流表的示数为0.3A,将测量仪接入cd时,电流表的示数为1.2A.则短路位置离甲地( )A.40km B.33.3km C.16.7km D.10km
﹣Your sweater looks nice. Could you tell me ?
﹣Of course. Just at the stop near my school.( )
A.where do you buy itB.where did you buy it
C.where you bought it
﹣It's a nice day today. Let's go to the park.
﹣ ( )
A.Good idea.B.It doesn't matter.
C.Thank you.
Hong Kong﹣Zhuhai﹣Macao(港珠澳大桥) in December,2009 and it opened in October,2018.( )
A.buildB.was builtC.is built
﹣May I speak to Mrs. Smith?
﹣Sorry,she the clothes.( )
A.is washingB.washesC.wash
Of the three books,the blue one is .( )
A.cheapB.cheaperC.cheapest