160km/h以上区段接触网的拉出值安全值允许误差为()。
A、±50mm
B、±30mm
C、±20mm
D、±10mm
参考答案:B
He is a foreigner. But now he on the right of the road in China.
A.used to drive
B.is used to drive
C.used to driving
D.is used to driving
重证据,重调查研究,严禁逼供信是指导人民警察正确办案的一项重要刑事政策。( )