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【单选题】
By saying that 'They held their ranks together'(Para. 2), the author means that the Republicans______.A.
kept indifferent to the declining support
B.
were united to fight against public criticism
C.
reorganized the army in Iraq
D.
kept their position as the party in power
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【单选题】It can be inferred from the first paragraph that
A.
oil was first discovered and used in the Middle East.
B.
the oil age is short-lived and has already come to its end.
C.
the shortage of kerosene led to the use of petrol and diesel.
D.
the oil age is largely attributed to technological developments.
【单选题】Which of the listed conditions can be used to determine if lube oil has been diluted by fuel? .
A.
Viscosity is decreased
B.
Octane number is altered
C.
Pump speed is decreased
D.
Blower’s speed is decreased
【单选题】Satellite tracking and remote communication systems can be used to
A.
reduce oil consumption.
B.
remove the obstacles on the road.
C.
call for help when one's car crashes.
D.
help drivers get out of a traffic jam.
【单选题】____ can be used to prevent hydraulic system overloaded or keep the pressure of oil outlet from pump constant
A.
Overflow valve
B.
Reducing valve
C.
Balancing valve
D.
Reducing valve or balancing valve
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