汽油机的混合气过稀的原因()。
A、浮子室油面过低
B、进、排气歧管衬垫漏气
C、汽油滤清器脏污堵塞
D、汽油管接头渗漏
参考答案:B
()is the application of planned, systematic quality activities to ensure that the project will employ all processes needed to meet requirements.
A.Quality assurance (QA)
B.Quality planning
C.Quality control (QC)
D.Quality costs
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