99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

<ins id="txgbo"><output id="txgbo"></output></ins>

<ruby id="txgbo"><xmp id="txgbo"></xmp></ruby>

<pre id="txgbo"><strong id="txgbo"></strong></pre>

<ins id="txgbo"></ins>

單項選擇題

A heater in the circuit facilitates warning of the engine prior to （） by circulating hot water.

A.starting
B.stopping
C.to start
D.to stop

你可能感興趣的試題

單項選擇題

A gudgeon pin in a trunk piston may be free to float and rotate, with （） to limit axial movement.

A.split pins
B.crankpins
C.dipsticks
D.circlips

單項選擇題

A governor automatically controls engine speed by regulating （）.

A.fuel supply
B.firing order
C.engine load
D.oil level