面对日本核泻漏,引发的食盐抢购潮,国家及时采取措施,平息“盐荒”。这体现的政治学

题型:选择题

问题:

面对日本核泻漏,引发的食盐抢购潮,国家及时采取措施,平息“盐荒”。这体现的政治学道理有    [ ]

A.我们党坚持执政为民

B.我们国家机关坚持对人民负责的原则

C.国家积极履行政治职能,维护社会稳定

D.我们党在重大问题上坚持科学决策、民主决策

考点:政府工作准则及工作要求
题型:选择题

心脏瓣膜Erb听诊区又称 ()

A.二尖瓣听诊区

B.肺动脉瓣听诊区

C.主动脉瓣听诊区

D.主动脉瓣第二听诊区

E.三尖瓣听诊区

题型:选择题

宇航员在某星球上做自由落体实验,将某物体从离星球表面较低的高度h处释放,经时间t后落到星球表面(设星球半径为R).求该星球的重力加速度______和该星球的第一宇宙速度______.

题型:选择题

为了防止露点腐蚀,应对()进行控制。

A、加热炉排烟温度

B、加热炉氧含量

C、加热炉辐射分支流量

D、加热炉炉膛温度

题型: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.

55().

A.such 

B.even 

C.so 

D.not

题型:选择题

设计管路时,若选用较粗的管子,则管路的()。

A.设备费用和操作费用均较高

B.设备费用和操作费用均较低

C.设备费用较低,操作费用较高

D.设备费用较高,操作费用较低

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