环境保护是当前世界发展的重要课题.下列治理相关污染的措施可行的是( ) ABCD

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问题:

环境保护是当前世界发展的重要课题.下列治理相关污染的措施可行的是(  )

ABCD
污染温室效应水体污染酸 雨沙尘暴
防治措施使用天然气代替煤禁止使用化肥和农药工厂废气直接排放植树造林

A.①

B.②

C.③

D.④

考点:酸雨环境和能源空气的污染和防治燃料的利用和新能源的开发
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测定比例系统误差的试验是()

A.重复性试验

B.干扰试验

C.线性试验

D.回收试验

E.检测能力试验

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When Boris left school, he could not find a job. He tried hard and pestered (纠缠) his relatives, but they had problems of their own. He answered advertisements until he could not afford to buy any more stamps. Boris grew annoyed, then depressed, then a little hardened. Still he went on trying and still he failed. He began to think that he had no future at all.

“Why don't you start your own business?” one of his uncles told him. “The world is a money-locker. You'd better find a way of opening it.”

“But what can I do?”

“Get out and have a look round.” advised his uncle in a vague sort of way. “See what people want; then give it to them, and they will pay for it.”

Boris began to cycle around the town and found a suitable piece of a waste ground in the end. Then he set up his business as a cycle repairer. He worked hard, made friends with his customers and gradually managed to build up his goodwill and profit. A few months later, he found that he had more work than he could deal with by himself. He found a number of empty shops but they were all no good: in the wrong position, too expensive or with some other snag(障碍). But at long last, he managed to find an empty shop on a new estate where there were plenty of customers but no competition.

Boris and his assistant taught themselves how to repair scooters and motor-cycles. Slowly but surely the profits increased and the business developed. At last, Boris had managed to open the money-locker and found bank notes and gold coins inside.

小题1:Which of the following best describes Boris' job hunting experience?

A.Surprising.

B.Encouraging.

C.Boring.

D.Disappointing.小题2:Which of the following would be the best title for the passage?

A.Goodwill is the key to success

B.The world is a money-locker

C.No education, no future

D.Difficulty of starting a small business小题3:Boris started his career by       .

A.repairing cycles

B.developing a waste ground

C.cycling around the town

D.buying empty shops小题4:Boris finally chose an empty shop on a new estate because       .

A.it was not so expensive

B.he had a lot of old customers there

C.there were good opportunities there

D.he could make good use of his skills there小题5:We can infer from the last paragraph that Boris     .

A.still couldn't make good profits

B.found a lot of gold coins by accident

C.set off in a successful career

D.had great difficulty running his business

题型:选择题

润滑油温度下降的处理措施正确的是()。

A.调小冷却水量

B.调大冷却水阀门开度

C.调大轴瓦间隙

D.消除油冷器管束污垢层

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在编制施工组织设计时,( )不是确定施工顺序的原则。

A.必须符合工艺要求

B.必须考虑施工进度的要求

C.充分考虑自然条件的影响

D.与施工方法、施工机具的配置相协调

题型:选择题

简述负荷控制设备检查的观察分析法。

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