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

單項選擇題

Fuel injection uses the jet pump system and a Woodward type hydraulic () is used to control engine speed.

A.controller
B.governor
C.instrument
D.apparatus

微信掃碼免費搜題