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

<sup id="9fy50"><legend id="9fy50"><div id="9fy50"></div></legend></sup>

單項(xiàng)選擇題

Once all cylinders are firing regularly, （） is shut off.

A.the exhaust valve
B.the starting air
C.the inlet valve
D.the fuel oil

你可能感興趣的試題

單項(xiàng)選擇題

Once a scavenge fire is detected, fuel should be shut off from the affected cylinders and cylinder lubrication increased （） the risk of seizure.

A.to protect
B.to guard
C.to maximize
D.to minimize

單項(xiàng)選擇題

Once a scavenge fire is detected the engine （）.

A.will be speeded up
B.should be slowed down
C.must slow down
D.have to be slow down

<ins id="muh7b"><xmp id="muh7b"></xmp></ins>

<ruby id="muh7b"><xmp id="muh7b"></xmp></ruby>

<pre id="muh7b"><legend id="muh7b"></legend></pre>

<ruby id="muh7b"><xmp id="muh7b"></xmp></ruby>