千分尺是利用接长杆将角度位移变为直线位移的。
参考答案：错
You have to leave now_______ you can catch the early bus.
A．so that
B．as soon as
C．because
D．although
以下那个接口与BSS/PCU无关：（）
A.Um
B.Abis
C.Gb
D.Gp
