a two-stroke engine works without exhaust operation
a two-stroke engine works without compression stroke
a two-stroke engine works without expansion stroke
a two-stroke engine works without suction operation
第1题：
There are no major differences between how one reads in one’s mother tongue and how one reads in a foreign language.（）
A对
B错
第2题：
Inefficient scavenging；twice
Inefficient scavenging；1~8 times
Fewer strokes in a circle；twice
Fewer strokes in a circle；1~8 times
第3题：
It is easy to detect the physical differences between originals and copies.()
第4题：
most critical in a four-stroke cycle diesel engine
most critical in a two-stroke/cycle diesel engine
most critical in a four-stroke/cycle diesel engine if it is turbocharged
of equal importance in a two-stroke/cycle diesel engine as in a four-stroke/cycle diesel engine
第5题：
对
错
第6题：
There are no major differences between how one reads in one’s mother tongue and how one reads in a foreign language.（）
第7题：
compression ratio of the engine
volume of the engine
relationships between pressure and volume during one stroke of the engine
relationships between pressure and volume during one cycle of the engine
第8题：
_____ the engines, the diesel engine is ____ used engine on board
A.Between / more commonly
B.Among / the most commonly
C.Between / not more commonly
D.Among / not the most commonly
第9题：
one half crankshaft speed in a two-stroke cycle diesel engine
crankshaft speed in a two-stroke cycle diesel engine
two times crankshaft speed in a two-stroke cycle diesel engine
one-fourth times crankshaft speed in a four-stroke cycle diesel engine
第10题：
Exhaust and scavenging
Scavenging and compression
Ignition and expansion
Exhaust and compression