()的作用是保证柴油在低压油路内循环,克服管路及滤清器的阻力,保证连续不断地供应足够数量及一定压力的柴油给喷油泵。
A.油箱
B.滤清器
C.输油泵
D.PT泵
参考答案:C
方框中选出一个可以填入空白处的词语,并用其适当形式填(每空一词)。
Most children like watching TV. It’s very 小题1: . By watching TV they can see and learn a lot and know many things about their country and the world. Of course, they can also 小题2: over the radio. But they can learn better and more小题3: on TV. Why? Because they can hear and watch at the same time. But they can’t see 小题4: over the radio. TV helps to open children’s小题5: It helps to open their minds, too. They learn newer and Better ways of doing things. Many children watch TV only on Saturday or Sunday evening. But a few children watch TV every night. They go to bed very late. They can’ t have a good rest.
下列不属于城镇体系规划图纸的是( )。
A.城镇体系规划图
B.综合评价图
C.重点地区城镇发展规划示意图
D.区域设置图