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【多选题】
供应链信息系统根据其所处的层次可以分为A.
交易系统
B.
管理控制系统
C.
决策分析系统
D.
战略规划系统
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反馈参考答案：
举一反三
【单选题】电压Uab =10 V的意义是:
A.
电场力将电荷从a点移到b点做的功是10 J
B.
电场力将正电荷从a点移到b点做的功是10 J
C.
电场力将电荷从a点移到参考点做功是10 J
D.
电场力将电荷从b点移 到参考点做的功是10 J
【单选题】Read the text slowly _______ you may understand the story better.
A.
and
B.
for
C.
since
D.
because
【简答题】哈尔滨市是我国各大城市中冬季气温最低,素有“ ”之称。
【简答题】白居易有诗圣之称。( )
【简答题】Which of the following is true according to the text? [ A] The 2006 incidence occurred because of the carelessness of a supervisor. [ B ] Yellow liquids in a glove box should always be handled with he...
【简答题】Text messaging, or 'texting', which allows people to send and receive messages on mobile phones, becomes very popular today. The advantages of texting are obvious. Texting helps to save money. If you ...
【简答题】有“火山国”之称是 。“花园城市”之称的是 。
【简答题】Transmission systems ― conveys the drive to the wheels. The main components are clutch,gearbox, driveshaft, final drive, and differential.
【单选题】converts the reciprocating motion of the pistons into a rotary motion for the drive wheels.
A.
Camshaft
B.
Crankshaft
C.
Flywheel
D.
Timing belt
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