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【简答题】
某公司每天至少要运送180吨货物，公司有8辆载重为6t的A型卡车和4辆载重为10t的B型卡车，A型卡车每天可往返4次，B型卡车可往返3次，A型卡车每天花费320元，B型卡车每天花费504元，则通过合理调配车辆，使公司每天花费最少为 .
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举一反三
【单选题】According to the passage what is the best for both parents and children?
A.
They should adjust themselves to sharing the family expenses.
B.
Children should leave their parents when they grow up.
C.
Adult children should visit their parents from time to time.
D.
Parents should support their adult children when they are in trouble.
【单选题】Both parents and teenagers should try their best to communicate more with each other and the gap (差距) between them. [ ]
A.
open
B.
adjust
C.
narrow
D.
reduce
【单选题】某施工合同在履行过程中,承包人提出使用专利技术,工程师同意,则下列各各申报手续和费用承担的表述,正确的是( )
A.
发包人办理申报手续并承担费用
B.
发包人办理申报手续，承包人承担费用
C.
承包人办理申报手续，发包人承担费用
D.
承包人办理申报手续并承担费用
【单选题】Both parents should take equal responsibilities for the ________ needs of their children.
A.
typical
B.
honest
C.
emotional
【简答题】某施工合同在履行过程中，承包人提出使用专利技术，工程师同意，则下列各个申报手续和费用承担的表述，正确的是（ ）。
【简答题】The onus is on governmentdepartments to tell why information cannot be disclosed.A. blame B. concern C. responsibility
【单选题】Both parents and teenagers should try their best to communicate more with each other and _____ the gap between them. [ ]
A.
open
B.
adjust
C.
narrow
D.
reduce
【简答题】放大从零频到高频信号的宽带放大器采用( )耦合方式,放大从低频到高频信号的宽带放大器采用( )耦合方式。
【单选题】Why cannot aeroplanes fly very high?
A.
It's because the air gets thinner when planes get higher.
B.
It’s because there is not enough fuel.
C.
It's because the pilots cannot breathe without air.
D.
It's because airplanes are very big and heavy.
【判断题】如点火提前角过大,混合气的燃烧在压缩行程中进行,气缸内的燃烧气体压力急剧上升,会给正在上行的活塞造成一短时间的增力,使发动机功率上升,而且爆燃严重。
A.
正确
B.
错误
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