單項選擇題The development of () has kept pace with the increasing demands made by the steady rise in power produced by modem marine diesels.

A.water
B.fresh air
C.oils
D.gases


您可能感興趣的試卷

你可能感興趣的試題

2.單項選擇題The design of () is similar to that of the main bearing.

A.the block bearing
B.the camshaft bearing
C.the connecting rod small end bearing
D.the connecting rod large end bearing

3.單項選擇題The cylinders, with cooling jackets, are () to the engine frame by eight tie rods.

A.screwed
B.welded
C.fastened
D.rotated

4.單項選擇題The cylinder liners are made of () and the cylinder surfaces are sometimes chromium-plated.

A.steel
B.copper
C.cast iron
D.stainless steel