题目

It’s time that you  home and I’d rather you  again tomorrow. A.are going;will come                 B.go;are coming C.went;came                           D.would go;would come 答案:C 解析: It’s time...和I’d rather...后接that从句时,从句常用一般过去时。如图所示的电路测定电动势和内电阻。其中V为电压表(其电阻足够大),定值电阻R = 7.0欧。在电键未接通时,V的读数为6.0V;电键接通后,V的读数变为5.6V。那么,电池组的电动势和内电阻分别是:(   )A.6.0V,0.5欧B.6.0V, 1.25欧C.5.6V,1.25欧D.5.6V, 0.5欧
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