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【简答题】
( 许多作家喜欢 “ 朝花夕拾 ” ,因为经过沉思,同一对象获得二度体验,从而被赋予丰富的诗意。 ) 判断这一观点之正确或错误原因的 详细 分析( 分析的过于简单会酌情减分 )。
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【判断题】数据完整性防范对象是非法用户和合法用户的非法操作。
A.
正确
B.
错误
【简答题】The function of power train (1) changing the speed, torque and direction by transmission. (2) transmitting power from the engine to the drive wheels. (3) cutting off the power by clutch. (4) th...
【判断题】数据完整性的防范对象是非法用户和合法用户的非法操作
A.
正确
B.
错误
【单选题】The function of is to transform the reciprocating movement of pistons into Rotary movement of crankshaft,offering torque to make the drive wheels turn.
A.
crank mechanism
B.
valve train
C.
cylinder block
D.
connecting rod
【单选题】The drive wheels of the vibratory roller are rubber-tyred and filled with water and calcium-( or magnesium) chloride to _______ the weight.
A.
decrease
B.
increase
C.
enlarge
D.
reduce
【简答题】请将这句话 The output shaft is a splined shaft that connects directly to the drive shaft through the differential to the drive wheels of the car.翻译成中文。
【单选题】converts the reciprocating motion of the pistons into a rotary motion for the drive wheels.
A.
Crankshaft
B.
Camshaft
C.
Flywheel
D.
Timing belt
【单选题】The function of is to transform the reciprocating movement of pistons into rotary movement of crankshaft, offering torque to make the drive wheels turn.
A.
connecting rod
B.
crank mechamism
C.
valve train
D.
cylinder block
【判断题】安全性措施的防范对象是非法用户和非法操作,完整性措施的防范对象是不合语义的数据。
A.
正确
B.
错误
【单选题】当月亮以一半亮面、一半暗面面对地球时,出现的月相是( )。
A.
新月
B.
满月
C.
弦月
D.
凸月
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