题目:
小刚为了深入了解和全面评价唐太宗,进行了探究性学习。下列为他的学习提供丰富而有效的信息的文献是哪部? [ ]
A.《史记》
B.《汉书》
C.《贞观政要》
D.《三国演义》
答案:
答案:C
小刚为了深入了解和全面评价唐太宗,进行了探究性学习。下列为他的学习提供丰富而有效的信息的文献是哪部? [ ]
A.《史记》
B.《汉书》
C.《贞观政要》
D.《三国演义》
答案:C
开标时,应当不作为无效投标文件的情形是( )。
A.未密封投标文件的
B.关键内容字迹无法辨认的
C.未提供投保证金和投标保证的
D.无项目经理印章的
The deadly earthquake and tsunami (海啸) that struck Japan on March 11 damaged two nuclear power stations. Officials are now working to prevent dangerous radiation from poisoning the air in the area surrounding the Fukushima Daiichi plant. The Japanese government has ordered people living within 12 and a half miles of the plant to evacuate, and asked those living 12 and a half to 20 miles away to stay indoors.
Nuclear power plants create energy using a chemical reaction that produces large amounts of heat. Reactors(反应堆)in Japan have many long, thin rods, called fuel rods(棒), which must be kept cool.
If the reactor’s fuel rods aren’t cooled, the reaction can burn out of control. That’s what happened at the two Japanese plants after the quake caused a power failure and the cooling systems malfunctioned(发生故障). This overheating could cause radiation to escape and sicken many people.
Japan’s 54 nuclear reactors are built to withstand the many small or moderate earthquakes the country faces each year. But Friday’s earthquake was one of the most severe earthquakes ever recorded.
People exposed to unsafe levels of radiation have a higher than normal risk of getting cancer. The Japanese government has been distributing potassium iodide(碘化钾)pills to people in the surrounding areas to protect those who may have come in contact with radiation from the power plant. The pills flood the body with healthy potassium iodide. The potassium iodide works to crowd out “bad” iodine in the body that may have been poisoned by radiation.
On Tuesday morning, 750 workers left the Fukushima Daiichi plant. However, 50 workers stayed behind to use sweater to cool the fuel rods. These dedicated employees are risking their own lives to save many others.
On Thursday, officials used helicopters, fire trucks, and water cannons to spray water on the reactors to cool the fuel rods. But it’s not clear whether these efforts were successful. Officials are now working on a power line to restore electricity to the plant. They hope this will help restart the plant’s cooling system and stop the fuel rods from leaking radiation.
小题1:The underlined word “evacuate” in Paragraph 1 probably means .
A.help
B.rest
C.stop
D.leave小题2:What can we learn from the text?
A.The local people are scared and ready to run away.
B.The earthquake led to many deaths and caused damage to roads.
C.The Japanese government has found a kind of pill that can treat cancer.
D.The two stations were damaged because their cooling systems didn’t work.小题3:In the last paragraph, the author mainly states .
A.lack of help
B.international aids
C.the government’s efforts
D.the result of the disaster小题4:This text is most probably taken from .
A.a research paper
B.a newspaper report
C.a class presentation
D.a chemistry textbook
从地球表面到1000千米的高空的区域称为大气层,大气层可分为()
A.对流层
B.平流层
C.平衡层
D.电离层
电子政务应用系统建设包括的三个层面是______。
A.网络建设、信息收集、业务处理
B.信息收集、业务处理、决策支持
C.业务必理、网络建设、决策支持
D.信息收集、决策支持、网络建设
钢材的冲击韧性,会随温度的降低而()。
A.明显减小
B.明显增大
C.无明显变化
D.二者没有联系