对季节性热负荷变化较大,昼夜热负荷变化较大。或近期热负荷总量还较小,且无持续稳定热负

题型:单项选择题

问题:

对季节性热负荷变化较大,昼夜热负荷变化较大。或近期热负荷总量还较小,且无持续稳定热负荷的热电厂,应选用( )。

A.抽凝式汽轮机
B.抽汽背压式汽轮机
C.凝汽式汽轮机
D.背压式汽轮机

考点:中级邮电经济动力专业案例勘察设计注册公用设备工程师动力专业知识上午试卷
题型:单项选择题
计算:
(1)(
2
-
3
)0+|-3|-2-1

(2)
2-x
x-1
÷(x+1-
3
x-1
)
题型:单项选择题

保险经纪人有利于我国保险业与国际接轨,主要是因为保险经纪人在()市场上的重要作用。

A.保险经纪

B.原保险

C.国际再保险

D.财产保险

题型:单项选择题

牙量骨量不调而产生的牙列拥挤约占错的()

A.52%

B.25%

C.92%

D.76%

E.29%

题型:单项选择题

__________ you often go to the beach?  No, but I ___________ last Sunday.[ ]

A. Do, go

B. Did, went

C. Do, did

D. Did, do

题型:单项选择题

We’ve reached a strange—some would say unusual—point. While fighting world hunger continues to be the matter of vital importance according to a recent report from the World Health Organization (WHO), more people now die from being overweight, or say, from being extremely fat, than from being underweight. It’s the good life that’s more likely to kill us these days.

Worse, nearly l8 million children under the age of five around the world are estimated to be overweight. What’s going on?

We really don’t have many excuses for our weight problems. The dangers of the problem have been drilled into us by public-health campaigns since 2001 and the message is getting through—up to a point.

In the 1970s, Finland, for example, had the highest rate of heart disease in the world and being overweight was its main cause. Not any more. A public-health campaign has greatly reduced the number of heart disease deaths by 80 per cent over the past three decades.

Maybe that explains why the percentage of people in Finland taking diet pills doubled between 2001 and 2005, and doctors even offer surgery of removing fat inside and change the shape of the body. That has become a sort of fashion. No wonder it ranks as the world’s most body-conscious country.

We know what we should be doing to lose weight—but actually doing it is another matter. By far the most popular excuse is not taking enough exercise. More than half of us admit we lack willpower.

Others blame good food. They say: it’s just too inviting and it makes them overeat. Still others lay the blame on the Americans, complaining that pounds have piled on thanks to eating too much American-style fast food.

Some also blame their parents—their genes. But unfortunately, the parents are wronged because they’re normal in shape, or rather slim.

It’s a similar story around the world, although people are relatively unlikely to have tried to lose weight. Parents are eager to see their kids shape up. Do as I say—not as I do.

小题1:What is the “strange” point mentioned in the first sentence?

A.The good life is a greater risk than the bad life.

B.Starvation is taking more people’s lives in the world.

C.WHO report shows people’s unawareness of food safety.

D.Overweight issue remains unresolved despite WHO’s efforts.小题2:Why does the author think that people have no excuse for being overweight?

A.A lot of effective diet pills are available.

B.Body image has nothing to do with good food.

C.They have been made fully aware of its dangers.

D.There are too many overweight people in the world.小题3:The example of Finland is used to illustrate ______.

A.the cause of heart disease

B.the fashion of body shaping

C.the effectiveness of a campaign

D.the history of a body-conscious country小题4:Which would be the best title for the passage?

A.Actions or Excuses?

B.Overweight or Underweight?

C.WHO in a Dilemma

D.No Longer Dying of Hunger

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