柴油发动机减少排气污染一般采用哪些措施?
参考答案:
(1)减小喷油提前角
(2)进气管喷水或柴油掺水
(3)增压中冷
---This is the seat for the disabled.
--- Oh, sorry. I ____________ that.
A.didn’t realize
B.don’t realize
C.haven’t realized
D.hadn’t realized
下述哪项不是急性肾小球肾炎的临床特点()
A.水肿
B.血尿
C.少尿
D.大量蛋白尿
E.高血压