<rt id="50q0m"></rt>

<table id="50q0m"><legend id="50q0m"><big id="50q0m"></big></legend></table>

<table id="50q0m"></table>

單項選擇題

In motorships，there are two main circuits, （）.

A.one salt water, one fresh water
B.one salt water, one fuel
C.one fresh water, one fuel
D.one steam, one fuel

你可能感興趣的試題

單項選擇題

Auxiliary machinery covers everything onboard except （）.

A.main engines
B.main boilers
C.pipes and fittings
D.A and B

單項選擇題

A （）, sometimes called filters, is a device designed to prevent the passage of unwanted solids into the system.

A.steam trap
B.check valve
C.separator
D.strainer

^{<strike id="161t0"></strike>}