在工作循环结束后，留在气缸中残余废气最少的柴油机是（）。
A. 非增压四冲程
B. 增压四冲程
C. 弯流扫气二冲程
D. 直流扫气二冲程
查看答案
由于空气有可压缩性，所以气压传动装置气缸的动作速度易受负载影响。
A. 正确
B. 错误
As you approach Old River Control Structure Light you see a flashing amber light. You should（）.
A. navigate as close to the left descending bank as safety permits
B. navigate as close to the right descending bank as safety permits
C. turn into the inflow channel as the bypass is now open
D. slow your engine speed to not more than 5 mph
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