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單項(xiàng)選擇題

The chassis of 15 trucks are rust-stained，particularly（）near the mast house.

A.such
B.this
C.these
D.those

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單項(xiàng)選擇題

The best way to determine if a load is within maximum lift limits is to use（）.

A.a boom angle indicator
B.a load weight indicator
C.material invoices for shipping weights
D.prior experience with similar lifts

單項(xiàng)選擇題

The additional cargo is to be loaded（）board our ship.

A.on
B.in
C.from
D.to