调节阀按结构分为()、()。

题型:填空题

问题:

调节阀按结构分为()、()。

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题型:填空题

阅读理解。

     An old man was going home late one night with his horse and cart after a day's hard work. When he

was not far from his house, the light on the cart went out. He tried hard but it didn't work.

     He was near his home, and so he went along the road without a light. When a policeman saw this, he

stopped the old carter.

     "Where's your light?" asked the policeman. "No one may take a cart along a road at night without a light.

You know that. You've broken the law."

     "I had a light," said the old man, "but it has just gone out."

     "I don't believe that story," said the policeman. He took out a notebook and got ready to write. "What's

your name and where do you live?" he asked.

     "Please don't take my name," said the old man. "My house is just there. You can see it from here. I had

a light nearly the whole way. I haven't come far without a light."

     "You came all the way without a light. What's your name?"

     The carter quickly took the policeman's hand and put it down on the top of the light. The light was still

hot and burnt the policeman's hand. The policeman jumped and he was very angry.

     "Now, what do you think?" said the carter. "Did I come all the way without a light?"

1. The story happened ______.

A. in the morning

B. in the afternoon

C. at night

D. in the evening

2. Where did the light go out?

A. Far from his house.

B. Half way from his house.

C. Near his house.

D. In his house.

3. What made the policeman believe the old man's words?

A. He asked the policeman to take away the light.

B. The light burnt the policeman's hand.

C. The light burnt the policeman's foot.

D. He jumped and shouted angrily.

题型:填空题

炉温正常,渣铁流动性好时,铁口眼相应可()。

A、小些

B、大些

C、无要求

题型:填空题

为防止机组启动时若因凝结水水质不合格通过启动放水排至辅扩可能导致四抽提供汽源的小机返水影响小机安全运行,可以采取()措施。

A.机组正常运行中必须关闭四抽进汽电动门与四抽逆止门之间的疏水门;

B.小机进行四抽汽源的暖管工作时,必须及时将#1机启动放水至辅扩的手动门关闭;

C.禁止向辅扩排放凝结水;

D.开启小机本体疏水。

题型:填空题

在我国,邮递货物保险条款包括()。

A.邮包险

B.邮包水渍险

C.邮包一切险

D.邮包战争险

E.邮包罢工险

题型:填空题

电流强度的单位是(),用A表示。

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