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【单选题】
根据《城市排水工程规划规范》的规定，城市雨水工程规模应根据（ ）确定。A.
雨水量和径流系数
B.
雨水量和暴雨强度
C.
径流系数和城市雨水汇水面积
D.
城市雨水汇水面积和暴雨程度
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举一反三
【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...
【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
【单选题】完整性检查和控制的防范对象是不合语义的数据、不正确的数据,防止它们进入数据库。安全性控制的防范对象是()非法操作,防止他们 对数据库数据的存取。 五
A.
不合语义的数据
B.
非法用户
C.
不正确的数据
D.
非法操作
【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
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