凸版多色印刷机,由一条环行平皮带()依次压印编织袋,也叫圆压平式机。A.输送 B.翻

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问题:

凸版多色印刷机,由一条环行平皮带()依次压印编织袋,也叫圆压平式机。

A.输送

B.翻转

C.控制

D.制动

考点:塑料编织生产操作工切印模块切印模块题库
题型:单项选择题

把一支温度计放在太阳底下晒,发现温度计示数会______(填“上升”“不变”或“下降”),这说明太阳光向外辐射能量.把一支温度计放在太阳光色散区域红光的外测,可以发现温度计示数______(填“上升”、“不变”或“下降”),这说明了红光之外有一种不可见光,它叫______.

题型:单项选择题

四.阅读理解(30分)

A

United Nations Climate Change Conference

The U.N. Climate Change conference opened in Copenhagen, Denmark on Dec.7th with some 15,000 delegates and observers from nearly 200 countries attending what is called the last best chance for an agreement to combat(与……战斗) global warming.

Their aim is to find common ground, including on reduction of greenhouse gas emissions, promotion and transfer of new more eco-friendly technology and the necessary funding to make this possible, especially for the less developed and poorer nations.  It also means coming up with long term vision and cooperation for the future.

Most scientists believe the warming trend is mainly caused by human activity, especially the use of fossil fuels(矿物燃料) and the cutting down of forests. Skeptics(怀疑论者) say global warming is part of a natural cycle of climate change.

In Copenhagen, experts and officials alike are putting the emphasis on what people and governments can do to cut the emission of greenhouse gases.

Scientists say a 25 to 40 percent cut in carbon-dioxide emissions is needed to control global warming. The European Union, China, and India have already pledged(保证) reductions. The United States is waiting for Congressional(国会的) approval for a proposal put forward by the Obama administration.

Barack Obama, President of the United States said, “Each of us must do what we can when we can to grow our economies without endangering our planet -- and we must all do it together. We must seize the opportunity to make Copenhagen a significant step forward in the global fight against climate change..”

Desmond Tutu, Archbishop of South Africa said, “Worldwide, we have the chance to start turning the tide of climate change, but only if all governments commit themselves to a fair, binding(有约束力的) and sustainable climate agreement in Copenhagen.”

56. From the first paragraph we can infer that___________.

people think that this conference is of no use

this conference is the last one to be held about the climate change

before this conference some countries fight against each other.

people expect a final agreement will be achieved

57. Which is NOT included in the aim of this conference?

A. To reduce the emission of the greenhouse gases.

B. To develop the agriculture and industry of the developed countries.

C. To cooperate with each other for the future.

D. To transfer new more eco-friendly technology.

58. Which statement is TRUE according to the passage?

A. The United States refuses to reduce the emission of greenhouse gases.

B. The European Union is waiting for a proposal put forward by Obama.

C. China and India have already agreed to cut carbon-dioxide emissions.

D. South Africa doesn’t think much of this conference.

59. What is Obama’s attitude according to his words?

A. Doubtful.                          B. Positive.     C. Negative.                    D. Regretful.

60. _________is the reason of global warming according to the skeptics.

A. Human activity                  B. Fossil fuels  

C. The cutting down of trees           D. Natural climate change

题型:单项选择题

COPD患者,今晨突感左上胸短暂刺痛,逐渐感呼吸困难,不能平卧。心率120次/分,律齐,左肺呼吸音明显减弱,你考虑出现了哪种情况()

A.心绞痛

B.肺不张

C.胸膜炎

D.自发性气胸

E.急性左心衰竭

题型:单项选择题

IARC根据对人的致癌危险将致癌物分类,正确的描述是()。

A、1类:对人致癌

B、L类:对人很可能致癌

C、2A类:对人可能致癌

D、2B类:对人很可能致癌

E、3类:对人很可能不致癌

题型:单项选择题

男性,21岁,因误服毒物半小时而出现头晕、头痛、多汗、恶心、呕吐、腹痛、腹泻等症状。体格检查:两肺湿啰音,呼吸有蒜味,意识清楚。

为判断病人中毒程度测定( )

A.呼吸道分泌物有机磷的鉴定
B.尿中三氯乙醇的含量
C.肝、脾功能
D.血液胆碱酯酶活力
E.呕吐物中有机磷的含量

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