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【判断题】
艺术可以陶冶人的情操，美化人的心灵，提升人的品位，升华人的精神境界。()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】The critics______(只有无情的批评) for the new play.
【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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