單項(xiàng)選擇題撇纜繩與大纜眼環(huán)之間連接的繩結(jié)是：（）。

A.系纜活結(jié)
B.撇纜活結(jié)
C.單套結(jié)


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1.單項(xiàng)選擇題在鋼絲繩上打止索結(jié)的制索繩應(yīng)采用：（）。

A.鋼絲繩
B.鏈索
C.纖維繩

3.單項(xiàng)選擇題船舶高空作業(yè)不宜在何種情況下進(jìn)行（）。

A.錨泊
B.系浮筒
C.航行中

4.單項(xiàng)選擇題When the anchor is brought to and holding，the horizontal component of anchor cable tensions should equal the（）.

A.displacement tonnage
B.weight forces
C.buoyancy forces
D.environmental forces

5.單項(xiàng)選擇題When picking up your mooring at the buoy，the correct method is to（）.

A.approach the buoy with the wind and current astern
B.approach the buoy with the wind and current ahead
C.approach the buoy with wind and sea abeam
D.stop upwind and up current and drift down on the buoy