题目内容
(请给出正确答案)
提问人:网友曾深鑫
发布时间:2022-01-07
[主观题]
Among the four strokes of a four-stroke diesel engine,suction and expansion strokes are
the upward strokes.()
此题为判断题(对,错)。
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此题为判断题(对,错)。
此题为判断题(对,错)。
(1) scavenging air is cooling the exhaust gases
(2) exhaust cycle time is longer
A. (1) only
B. (2) only
C. both (1) and (2)
D. neither (1) nor (2)
A、hemorrhagic stroke
B、ischemic stroke
C、bleeding stroke
D、transient ischemic stroke
A. after TDC
B. before TDC
C. after BDC
D. before BDC
A、make… use of
B、take… advantages of
C、utilize…of
D、avail… of
A、U and V
B、X and Z
C、P and Q
D、U and W
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