Because all the other classmates had known each other quite well, he found himself, the new comer of the class, ______ whenever there were class activities.[ ]

A. picked out  

B. broken out  

C. left out  

D. found out

可以布置在非机动车道或机动车道下面的管线是( )

A．给水输水管线

B．雨污排水管线

C．热力管线

D．电力电缆

E．电信电缆