在纸管中的产品总量是（）。
A、用电眼来检察
B、取决于产品的品种
C、固定不变的
D、由浮筒和液位传感器检测并进行初步控制
参考答案：D
把123厘米的圆钢锯成相等的11段。若锯口的损耗是0.2厘米，那么每一段圆钢的长度是多少厘米？
A vessel continually lists to one side and has a normal rolling period. Which statement is true?（）.
A.The vessel has negative GM
B.The center of gravity is on the centerline
C.The list can be corrected by reducing KM
D.The vessel has asymmetrical weight distribution
