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單項(xiàng)選擇題

The design specifications for cranes and crane foundations on ship’s are set and published by the（）.

A.American Society of Mechanical Engineers
B.American Petroleum Institute
C.Society of Petroleum Engineers
D.American Society of Civil Engineers

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單項(xiàng)選擇題

The depth（）a shallow patch，lying about 1.3 miles southeastward of Nanshan Tou lighthouse reduces to about 6.1 meters.

A.above
B.over
C.up
D.upon

單項(xiàng)選擇題

The datum from which the predicted heights of tides are reckoned in the tide tables is（）.

A.mean low water
B.the same as that used for the charts of the locality
C.the highest possible level
D.given in table three of the tide tables

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