2、atmenhave________aswomendowhatevervehiclestheydrive.A.twiceseriousaccidentsasmany B.seriousaccidentsasmanytwiceC.seriousaccidentsastwicemany D.twiceasmanyseriousaccidents4.Withoutfacts,wecannotformaworthwhileopinion,forweneedtohavefactualknowledge______ourthinking.A.uponwhichtobase B