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【判断题】
( )高档酒杯以洗碗机清洗为好。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】Try new sports, games, and other activities ________new foods.You'll grow stronger, play longer, look and feel better! [ ]
A.
such as
B.
as well as
C.
or
D.
as well
【单选题】In____ scavenging he incoming air is directed upwards and the exhaust gases travel down and out of the exhaust ports at the opposite side of the cylinder.
A.
cross
B.
loop
C.
aspirate
D.
uniflow
【单选题】The crankcase of many diesel engines are kept under a slight vacuum by the _____.
A.
scavenging action of the piston
B.
piston type vacuum pump taking suction off a differential manometer
C.
gland exhausting manometer
D.
crankcase exhaust fan
【单选题】In ________scavenging the incoming air enters at the lower end of the cylinder and exhaust gases are forced out at the top.
A.
across
B.
loop
C.
aspirate
D.
Uniflow
【简答题】uniflow scavenging
【单选题】In ____ scavenging the incoming air is directed upwards and the exhaust gases travel down and out of the exhaust ports at the opposite side of the cylinder.
A.
cross
B.
aspirated
C.
Loop
D.
uniflow
【单选题】In ________scavenging the incoming air is directed upwards and the exhaust gases travel down and out of the exhaust ports at the opposite side of the cylinder.
A.
cross
B.
loop
C.
aspirate
D.
Uniflow
【单选题】“Loop”, “uniflow”, “crossflow”,and “return-flow” are terms used to describe various types of_____.
A.
control air circuits
B.
supercharging
C.
turbochargers
D.
scavenging
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