妊娠8周,下列哪项不符合A.子宫颈软,呈紫蓝色 B.子宫体增大,于耻骨联合上方可扪及

题型:单项选择题

问题:

妊娠8周,下列哪项不符合

A.子宫颈软,呈紫蓝色

B.子宫体增大,于耻骨联合上方可扪及

C.晨起恶心、呕吐

D.妊娠试验阳性

E.乳晕着色

考点:护理学主管护师护师专业实践能力中级主管护师专业实践能力妇科专业3
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一位滑雪者从85m长的山坡上匀加速直线下滑,初速度为1.8m/s,末速度为6.7m/s,则他滑行的加速度大小为______m/s2,通过这段山坡所需要的时间是______.

题型:单项选择题

架空线缆可以架设在()。

A.木杆

B.树木

C.钢筋混凝土杆

D.脚手架

E.高大机械

题型:单项选择题

阅读理解。

     Nuclear energy has always been controversial. But since the tsunami and nuclear disaster in

Fukushima (Japan) last year the issue is back in the headlines. And the world is divided- some countries

are planning more nuclear plants, while others have promised to shut theirs down.

     After Fukushima, Germany decided to switch off all its nuclear plants by 2022. Switzerland and Italy

are also phasing out nuclear power. But France and the United States remain staunch supporters of

atomic energy. In fact, almost 80% of France's electricity comes from nuclear power, the highest

percentage in the world. And in the US, the Obama administration said it "continues to support the

expansion of nuclear power, despite the crisis in Japan."

     Nuclear supporters claim nuclear power can help the environment. Unlike fossil fuels, nuclear power

doesn't create greenhouse gases. So, pro-nuclear countries argue that nuclear power allows them to

generate energy without contributing to climate change. Britain's chief scientific adviser (John Beddington)

supports this view. He recently said that the world doesn't have the luxury of ignoring nuclear energy.

Nuclear power is also relatively cheap. Renewable energy sources such as solar, hydro and wind power

may be clean, but they're expensive; and right now, they require a lot of investment. This higher cost of

using "green energy" is usually passed onto the consumer. So, while many people may prefer their energy

to come from a renewable source, not so many are prepared to pay higher energy bills. This is of

particular concern while the world economy is in such bad shape.

     The main argument against nuclear energy is that it isn't safe. For a start, nuclear waste is very difficult

to dispose of, and remains toxic to humans for thousands of years. And even before Fukushima, there

were several high-profile nuclear disasters. The most famous is probably the 1986 Chernobyl disaster, in

the Ukraine. The radiation from the meltdown spread all over Europe, affecting thousands.

     The nuclear energy issue is very complex. And it doesn't look like it'll be resolved anytime soon. As a

Japanese commentator recently said, "it's been a bad year for the 'nuclear village', but I don't think they're down and out yet." The battle continues.

1. Which of the following may NOT be the advantage of nuclear energy over other energy sources? 

A. Nuclear energy doesn't produce any greenhouse gases.

B. Nuclear energy can help prevent the climate damage.

C. Nuclear energy is more environmental-friendly than other green energy sources.

D. Nuclear energy can save the consumers some money, compared to other renewable energies.

2. What does the underlined word "this " refer to in paragraph 4? 

A. The fact that many people prefer to use the green energy sources while unwilling to pay  

     higher bill.

B. The cost of using renewable sources

C. The fact that the nuclear power is cheaper.

D. The investment of renewable energy sources

3. In the 5th paragraph, the author takes the case of Chernobyl disaster in Ukraine to _______.

A. convince the reader that nuclear waste is difficult to get rid of.

B. explain that nuclear waste may remain harmful to humans for thousands of years.

C. persuade the world not to use nuclear energy.

D. support the idea that nuclear energy is not safe.

4. We can learn from the last paragraph that _______.

A. the Japanese commentator is positive about the future of nuclear energy.

B. the nuclear energy issue will be soon settled.

C. a battle will break out in the future.

D. Japan is considering to build a nuclear village in the future.

5. What is the author's purpose of writing the passage? 

A. To highlight the danger of using nuclear energy.

B. To introduce some serious nuclear disasters.

C. To show the argument between nuclear supporters and protesters.

D. To give some advice on how to use nuclear energy safely.

题型:单项选择题

如图所示是元素周期表的一部分,X、Y、Z、W均为短周期元素,若w原子最外层电子数是其内层电子数的3/5,则下列说法中正确的是

[ ]

A.原子半径由大到小排列顺序Z>Y>X

B.X与O2化合生成一种氧化物

C.气态氢化物的热稳定性Z > W

D.X元素是自然界中能形成化合物种类最多的元素

题型:单项选择题

系统实施后的评价是指( )。

A.确定系统的失败的原因,进行适当地调整

B.新系统的运行性能与预定目标的比较

C.系统转换前进行的评价

D.运行方式评价

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