單項(xiàng)選擇題

The center of gravity of a freely swinging load suspended from a pedestal crane acts as if it were located at the（）.

A.counterweight
B.pedestal
C.longitudinal centerline
D.point of suspension

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單項(xiàng)選擇題

Strengthening damaged bulkheads by using wood or steel is called（）.

A.bracing
B.battening
C.blocking
D.shoring

單項(xiàng)選擇題

Stanchions prevent the entire deck load on a ship from being carried by the（）.

A.bulkheads
B.stringers
C.frames and beam brackets
D.deck longitudinals