单项选择题

The hinge fitting used to attach the boom to the mast is the（）.

A.gooseneck
B.step
C.swivel
D.pintle

<上一题目录下一题>

热门试题

单项选择题

The heaviest type pallet is the（）.

A.factory pallet
B.shipping pallet
C.stevedoring pallet
D.warehouse pallet

单项选择题

The head of the bend is the（）.

A.top or upstream beginning of a bend
B.bottom or downstream beginning of a bend
C.midpoint or center radius of a bend
D.center line or apex of a bend