在汽油机的一个工作循环中,内能转化为机械能的是__________冲程;某汽油机

题型:填空题

问题:

在汽油机的一个工作循环中,内能转化为机械能的是__________冲程;某汽油机的飞轮转速为2400转/分,该汽油机活塞1s对外做功__________次。

考点:热机的定义
题型:填空题

请认真阅读下面短文,并根据短文内容回答问题。

You would see a robot when you were reading a story or watching a movie, such as Star Wars. Today,however,science stories are becoming true. More and more robots are starting to be used in factories and our homes.

These robots are different in size,shape and colour,but all of them have the same type of man-made “brain”. The robots that work in factories are called industrial robots. These kinds of robots are cleverer and faster than the old ones. Industrial robots can do jobs that are often boring and sometimes dangerous.

Robots are already coming into American homes,though not as quickly as they are going into factories. We have made robots work at home. They can do some housework like cooking, or playing with people just for fun.

These robots aren’t as friendly and clever as those in Star Wars. But their makers say, today’s  home robots can “walk” and find objects in their way,though sometimes they may knock into(撞上) those objects. They can even carry objects, though sometimes they may drop those objects. Well, nobody is perfect. We may laugh at home robots today,but some day they will do better than humans. We humans can only see certain length of light, and hear certain sounds, while robots may see and hear better than we do.

In a word, robots will be widely used in our life in the future.

(请将答案写在答题卡上)

小题1: Where are more and more robots starting to be used?

小题2: What do all kinds of robots have?

小题3: What kind of jobs can industrial robots do?

小题4: What do you think of today’s home robots?(请考生根据短文内容,自拟一句话作答)

小题5:What else do you want home robots to do for you? (请考生根据自己的想法,自拟一句话作答)

题型:填空题

对行经 * * 膀胱肿瘤切除术的患者,为早期发现和预防肿瘤复发。术后应采取

A.全身联合化疗

B.定期膀胱镜检查

C.应用干扰素或白细胞介素治疗

D.局部大剂量放疗

E.定期膀胱内灌注丝裂霉素等化疗药物或卡介苗

题型:填空题

应激时机体各种功能和代谢变化发生的基础主要是()

A.神经内分泌反应

B.免疫反应

C.情绪反应

D.急性期反应

E.适应性反应

题型:填空题

NG飞机的空/地系统接收的空/地逻辑信号来源于()

A.高度表

B.6个空地传感器,每个机轮上1个

C.来自于GPS的FMC的位置更新

题型:填空题

财政存款准备金计算公式是什么?

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