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

單項(xiàng)選擇題

Smaller engines can be made more rigid than large ones and may not have （）.

A.through bolts
B.turbo-chargers
C.bed plates
D.columns

你可能感興趣的試題

單項(xiàng)選擇題

Smaller engines can be made more rigid than large ones and may not have （）.

A.through bolts
B.dividing walls
C.sloping surfaces
D.relative angles

單項(xiàng)選擇題

Smaller engines can be made more rigid than large ones and may not have （）.

A.connecting rods
B.crankshaft
C.crankcase
D.through bolts

<dl id="owwwq"></dl>

<dd id="owwwq"></dd>

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

<ruby id="owwwq"><output id="owwwq"></output></ruby>