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问题 单项选择题

某市拟新建一大型会展中心，项目建设单位组织有关专家对该项目的总进度目标进行论证，在调查研究和收集整理后，紧接着应进行的工作是（　 ）。

A．进行进度计划系统结构分析

B．进行项目结构分析

C．编制各级进度计划

D．确定工作编码

答案

参考答案：B

单项选择题

将小球竖直上抛，经一段时间落回抛出点，若小球所受的空气阻力与速度成正比，对其上升过程和下降过程损失的机械能进行比较，下列说法中正确的是（）

A.上升损失的机械能大于下降损失的机械能

B.上升损失的机械能小于下降损失的机械能

C.上升损失的机械能等于下降损失的机械能

D.无法比较
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单项选择题

In country after country, talk of nonsmoker’s right is in the air. While a majority of countries have taken little (51) no action yet, some 30 nations have introduced legislated steps to control smoking. Many laws have been introduced in other countries to (52) clear the air for nonsmokers, or to cut cigarette consumption.

Smoking is harmful (53) the health of people. World governments should conduct serious campaigns against it. (54) on cigarette advertisements, plus health warnings on packages and ban on public smoking in certain places, (55) as theaters, cinemas and restaurants, are the most popular tools used by nations in (56) of nonsmokers or in controlling smoking. But world attention is also focusing on another step (57) will make the smoker increasingly self-conscious and uncomfortable about his habit. Great efforts should be made to (58) young people especially of the dreadful consequences of taking up the habit. And cigarette price should be raised.

In the long run, (59) is no doubt that everybody would be much better-off if smoking were banned altogether but many people are not (60) for such drastic action.

58().

A.encourage 

B.inform 

C.indicate 

D.illustrate
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