如图所示是安置在公路收费站栏杆的示意图,当在A处施加一个力时,可将栏杆逆时针拉起 发布时间:2017-07-21 18:34 │ 来源:www.tikuol.com 题型:选择题 问题: 如图所示是安置在公路收费站栏杆的示意图,当在A处施加一个力时,可将栏杆逆时针拉起来,它是一根 ( ) A.省力杠杆 B.费力杠杆 C.等臂杠杆 D.无法确定
题型:选择题 Last week he was caught robbing the bank opposite the station. his youth, the police have decided not to charge him.A.In spite ofB.In view ofC.In charge ofD.In case of 查看答案