單項(xiàng)選擇題

With （）, the corrosion problems are much reduced in a central cooling system.

A.no equipment in contact with sea water
B.less equipment in contact with fresh water
C.more equipment in contact with sea water
D.less equipment in contact with sea water

你可能感興趣的試題

單項(xiàng)選擇題

You must take good care of the drainage cock of the air control systemBecause （） leads scale formed which might malfunction the pilot control valve and other instruments.

A.the temperature
B.the rust
C.the pressure
D.the humidity

單項(xiàng)選擇題

You increased the （） to 150 tons that’s why the fuel oil （）.

A.pumped speed；came out
B.pumping rate；overflowed
C.flowing rate；leaked out
D.flowed speed；spilled out

无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

With （）, the corrosion problems are much reduced in a central cooling system.

你可能感興趣的試題

You must take good care of the drainage cock of the air control systemBecause （） leads scale formed which might malfunction the pilot control valve and other instruments.

You increased the （） to 150 tons that’s why the fuel oil （）.