A.a′=a
B.a′>a
C.a′<a
D.不能确定
[单选题]A.a′=aB.a′>aC.a′<aD.不能确定
[单选题]A.a′=aB.a′>aC.a′<aD.不能确定
[单选题]A.a′=aB.a′>aC.a′<aD.不能确定
[单选题]A.stay outside the network of social influenceB.have little contact with th
[单选题]A.stay outside the network of social influenceB.have little contact with th
[单选题]A.stay outside the network of social influenceB.have little contact with th
[多选题]A.下车的乘客可能从公交车前方横穿道路B.公交车可能即将启动并向左变更车道C.右侧摩托车可能驶入机动车道并穿插变更车道D.对向车道内的机动车可能违法跨
[单选题]A.北偏东30°B.北偏西30°C.西偏南30°D.南偏东30°