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【判断题】
燃油总管的作用是调节燃油供给系统油压,保持喷油器内与进气歧管内的压力差为一个恒定值。A.
正确
B.
错误
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举一反三
【简答题】转向器是转向系统的( )装置,目前在汽车上广泛应用的转向器主要有齿轮齿条式和( )等几种。
【简答题】在数据处理技术发展过程中,数据独立性最高的阶段是________
【单选题】IP 地址是 211.116.18.10 ,掩码是 255.255.255.252 ,其广播地址是?()
A.
211.116.15.255
B.
211.116.18.12
C.
211.116.18.11
D.
211.116.18.8
【单选题】Which one is not the significance of household contract responsibility system?
A.
It has liberated the rural productivity and motivated peasants to work harder.
B.
It helped to separate a large amount of rural labor force from land cultivation.
C.
It helped peasants to change into commodity producers and managers.
D.
It was affected by the foreign large-scaled agricultural production mode.
【单选题】Which one is not the significance of household contract responsibility system?
A.
It has liberated the rural productivity and motivated peasants to work harder. liberated the rural productivity and motivated peasants to work harder. It has liberated the rural productivity and motivated peasants to work harder.
B.
It helped to separate a large amount of rural labor force from land cultivation. It helped to separate a large amount of rural labor force from land cultivation.
C.
It helped peasants to change into commodity producers and managers.
D.
It was affected by the foreign large-scaled agricultural production mode It was affected by the foreign large-scaled agricultural production mode.
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