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【单选题】
Earthquakes and Animals Scientists who try to predict earthquakes have gotten some new helpers recently—animals. Animals often seem to know in advance that an earthquake is coming, and they show their fear by acting in strange ways. Before a quake (地震) in China in 1975 snakes awoke from their winter sleep early only to freeze to death in the cold air. All the unusual behavior, as well as physical changes in earth, alerted (提醒) Chinese scientists to the coming quake. They moved people away from the danger zone and saved thousands of lives. One task for scientists today is to learn exactly which types of animal behavior. predict quakes. It is not an easy job. First of all not every animal reacts to the danger of an earthquake. Just before a California quake in 1979, for example, an Arabian horse became very nervous and tried to break out of his stall. The horse next to him, however, remained perfectly calm. It is also difficult sometimes to tell the difference between normal animal calmness and 'earthquake nerves.' A zookeeper once told earthquake researchers that his cougar (美洲狮) had been acting strangely. It turned out that the cougar had a stomachache. A second task for scientists is to find out exactly what kinds of warning the animals receive. They know that animals sense far more of the world than humans do. Many animals can see, hear, and smell things that people do not even notice. Some can detect tiny changes in air pressure, gravity, or the magnetism (磁力) of earth. This extra sense probably helps animals predict earthquakes. A good example of this occurred with a group of dogs. They were closed in an area that was being shaken by a series of tiny earthquakes. Before each quake a low booming sound was heard. Each sound caused the dogs to bark (吠) wildly. The dogs began to bark during a silent period! A scientist who was recording the quakes looked at his machine. He realized that the dogs had reacted to a booming noise. They also sensed the tiny quake that followed it. The machine recorded both, though humans felt and heard nothing. In this case there was a machine to check what the dogs were sensing. Many times, however, our machines record nothing out of the ordinary, even though animals know a quake-is coming. The animals might be sensing something we do measure but do not recognize as a warning. Discovering what animals sense, and learning how they know danger signals, is a job for future scientists. During an earthquake in China in 1975, some cows had 'earthquake nerves' and some remained calm.
A.
Right
B.
Wrong
C.
Not mentioned
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【判断题】《中国图书馆分类法》是按知识门类的学科体系的逻辑次序进行分类。
A.
正确
B.
错误
【单选题】He uploads a(n)______________on the company intranet each month.
A.
face-to-face
B.
e-mail
C.
written report
【简答题】The Smiths like to go out for a trip on Sundays. This Sunday they want to go to the West Hill. Jack and Mike, the sons, get up very early in the morning. Jack puts on a shirt and jeans( 牛仔裤 ) , and Mi...
【单选题】– The housework is too much for me, Jack。 -- Sorry, but I can ’ t help______ it, Joan. I ’ ve got something to do, you know.
A.
do
B.
doing
C.
to be doing
D.
having done
【简答题】Reporting procedures (written report / face to face / e-mail)1) We often speak on the phone, but never ____________ .2) He uploads a(n) ___________ on the company intranet each month.
【多选题】利用路线价求取临街土地价值时,不进行“交易情况修正”和“市场状况修正”的原因,下列描述正确的是( )。
A.
临街宗地的平均价格已是经过修正后正常价格
B.
在求取路线价时没有搜集非正常交易实例
C.
该路线价所对应的日期本身就是价值时点
D.
该路线价与待估宗地的价格都是现在的价格
E.
交易修正和市场状况修正在求取路线价后再进行
【单选题】便携式电动工具可分为(  )类。
A.
1
B.
2
C.
3
D.
4
【简答题】工业互联网功能架构的基础设施层中,云基础设计包括________、________、________、________。
【单选题】吸人性烧伤最危险的并发症是
A.
感染
B.
室息
C.
心衰
D.
败血症
E.
肺炎
【单选题】He uploads (上传)a(n)______________on the company intranet each month.
A.
face-to-face
B.
e-mail
C.
written report
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