建设工程投资控制原理是一种动态的控制,在这一动态控制过程中应着重做好( )。A.对

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问题:

建设工程投资控制原理是一种动态的控制,在这一动态控制过程中应着重做好( )。

A.对计划目标值的论证和分析

B.收集实际数据

C.进行项目计划值与实际值的比较

D.不断地与质量目标进行对比

E.采取控制措施以确保投资目标的实现

考点:监理工程师(建设部)建设工程质量、投资、进度控制建设工程质量、投资、进度控制
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---I’m terribly sorry to have put you to so much trouble.

---______. You didn’t mean to, did you?

a.      forget it  b. no trouble  c. all right  d. you’re welcome

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泌尿系的致病菌多见于什么细菌()。

A.类链球菌

B.绿脓杆菌

C.真菌

D.大肠杆菌

E.产碱杆菌

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电力网中的电力设备和线路,可装设反应短路故障和异常运行的继电保护和自动装置。( )

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Fate has not been kind to the western grey whale. Its numbers have dwindled to 130 or so, leaving it “critically endangered” in the eyes of the International Union for the Conservation of Nature. Fishing-nets, speeding ships, pollution and coastal development threaten the few that remain. Most recently, drilling for oil and gas in their main summer feeding grounds, near Sakhalin island off Russia’s Pacific coast, has brought fresh risks for the luckless creatures. Yet the rush to develop Sakhalin’s offshore fields may yet be the saviour of the species.

When drilling was first discussed in the 1990s, there were muted complaints. When a consortium called Sakhalin. Energy, led by Royal Dutch Shell, announced plans to build an oil platform and lay pipelines in the only bay where the whales were known to congregate, these protests proliferated.

In response, the consortium established an independent panel to advise it on how best to protect the whales and promised to fund its work. It subsequently agreed to change the route of the pipeline at the panel’s suggestion, although it refused to move the platform, as other critics had demanded. It also agreed either to follow the panel’s recommendations in future or to explain publicly why it was rejecting them.

The platforms and pipelines are now complete. Sakhalin Energy exported its first cargo of liquefied natural gas last week. The project, says Shell, is an engineering triumph and a commercial success despite all the controversy.

But has it been a success for the whales Sakhalin Energy says their number seems to be growing by 2.5% a year, although Ian Craig, the firm’s boss, admits that the cause might be greater scrutiny rather than population growth. The scientists on the panel still seem worried. They complain that the firm has not always provided the information they need to assess the threat to the whales. It also has not always followed advice, the scientists’ advice about how noisy construction might scare the animals away, for example, or the speed that boats should travel to minimize the risk of hitting the whales. The scientists warn that the loss of just a few fertile females would be enough to tip the population into irrevocable decline. Last summer, there seemed to be far fewer whales around than normal.

On the other hand, the panel knows this only because Sakhalin Energy funds lots of research on the whales. As a result, it has discovered that they have a wider range than originally thought, which might explain why so few of them showed up off Sakhalin island last year.

Therefore, it is hard to escape the conclusion that, for creatures with a lot as sorry as the western grey whale, a nearby oil project is something of a blessing.

An appropriate title for the passage is most likely to be()

A. More Efforts Needed to Protect the Endangered Whales

B. The Environmental Risks and Rewards of Offshore Oil

C. The Already Endangered Whales Still in Danger

D. More Offshore Oil Projects, More Chances for Whales

题型:多项选择题

滑动间隙有()。

(A)轴向间隙和窜动间隙两种;

(B)顶间隙和侧间隙两种;

(C)轴向间隙和径向间隙两种;

(D)配合间隙和定心间隙两种。

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