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【单选题】
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）A.
During operation at low speed
B.
During operation at rated speed, but low power output
C.
During acceleration
D.
All of the above
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举一反三
【单选题】Xiaoming passed the interview of this famous company _______surprised everyone in the class.
A.
that
B.
which
C.
it
D.
then
【单选题】男性,0岁,右足底被铁锈钉刺伤10天,突然出现张口困难,继之出现苦笑面容,角弓反张,声响及触碰病人可诱发上述症状,病人神志清楚,不发热。对机体威胁最大的是
A.
肌肉断裂
B.
骨折
C.
尿潴留
D.
持续的呼吸肌痉挛
E.
营养障碍