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單項(xiàng)選擇題

A hydraulic machine is one that uses （） to do work.

A.liquid
B.steam
C.gas
D.electricity

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單項(xiàng)選擇題

If oil density were greater than water’s, the oil separator （）.

A.did work
B.would work well
C.didnt work
D.wouldnt work

單項(xiàng)選擇題

Oil Record Book Part I shall be provided to every oil tanker of 150 tons gross tonnage and above and every ship of 400 tons gross tonnage and above, （） oil tankers, to record relevant machinery space operations.

A.as well as
B.as long as
C.rather than
D.other than

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