道德的评价标准是（）
A.利益标准
B.政治原则标准
C.法律条文标准
D.善恶标准
E.生命质量标准
参考答案：D
划分( )是组织流水施工的基础。
A．工作面
B．施工段数
C．施工方案
D．制备方案
The tension on an anchor cable increases so that the angle of the catenary to the seabed at the anchor reaches 10°. How will this affect the anchor in sandy soil?（）
A.It will have no effect
B.It will increase the holding power
C.It will reduce the holding power
D.It will cause the anchor to snag
