当B8018基站需要级联从柜时,使用机顶的()接口通过E1线连接到从柜。
A、SYNC
B、HYCOM1~12
C、E1PORT1
D、E1PORT2
参考答案:D
(2013·福建,29)Mrs.Smith finds it hard to clear up the mess,as her children are always ________ whenever she tries to.
A.in the way
B.on watch
C.in sight
D.on the line
检查内痔时最常用的体位是
A.弯腰前俯位B.膝胸位C.截石位D.蹲位