在规定的拉力作用下，钢丝绳在卷筒上顺序紧密排列时，达规定的卷绕层数所能容纳的钢丝绳工作长度值，成为卷筒容量绳。
参考答案：错
— I think students should have mobile phones to call their parents at school..
—_______. They often use them to play games instead.
A．I hope so
B．I don't agree
C．No problem
D．Good idea
按照我国《合同法》的规定，合同条款空缺补充的方法有( )。
A．协议补充
B．调解补充
C．按合同有关条款补充
D．仲裁补充
E．按照法律规定补充
