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【简答题】

Terry Herbert, 55, of Staffordshire, the UK, has used a metal detector (探测器)for the past 18 years to look for treasure. He’d never found anything especially valuable. But on July 5, he made a very important discovery, which also changed the way the British look at history. In a field near his home, Herbert found a huge number of ancient artifacts. The finding was announced on September 24.
Archaeologists(考古学家) are surprised by the size of the discovery. There are more than 1,300 pieces. The discovery is much bigger than any other from the Anglo-saxon era(盎格鲁撒克逊时代),said Roger Bland of the British Museum. Bland said some experts think treasures of this kind must have belonged to a king but they couldn’t be certain.
The artifacts are thought to date from between AD 675 and AD 725, a time that is sometimes called the Dark Ages. The time was marked by frequent fighting. The gold in the collection weighs 5 kilograms. It suggests that England at the time was richer than historians thought.
Why were the gold and silver treasures buried? Archaeologists believe it could have been to hide them from enemies, a common practice at the time.
The findings could become one of Britain’s top archaeological finds. So far, experts have looked at 1,345 pieces and there are still more to come. It may take a year to look at the whole finding.
Herbert found the treasure while he was searching in a friend’s field over five days in July. He said his discovery was more fun than winning the lottery. “This is what treasure hunters dream of, finding stuff like this. The great amount there is just unbelievable,” he said.
1、Terry Herbert used a metal detector to search for treasure because .
A、he had researched the area and was sure there was treasure there.
B、he was very interested in British history.
C、he wanted to be an archeologist
D、he enjoyed searching for treasure
2、Herbert’s discovery is very important because .
A、the treasure he found belongs to an ancient English king.
B、the treasure has changed people’s understanding of early English history.
C、the treasure is proving a big help to the British economy.
D、it is the find that many British treasure hunters have been hoping for years.
3、On the basis of the article, which of the following is TRUE?
A、It might take three years for scientists to look through all of the treasure.
B、Ancient English people buried treasure in the fields for future use.
C、At the time England was a more violent and religious land than historians thought.
D、Herbert prefers the fun of treasure hunting over the money he will earn for his discovery.
4、Which of the following headlines best sums up the article?
A、British treasure hunter makes big find. B、Scientists find out about the dark ages.
C、How to find treasures using a metal detector. D、Archeologists win big lottery prize.

题目标签:探测器
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参考解析:
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刷刷题刷刷变学霸
举一反三

【单选题】将探测器接收的信息转换为数字信号的是

A.
信号放大器
B.
探测器
C.
A/D转换器
D.
信号比较器
E.
后组探测器

【单选题】两个相邻火灾探测器的距离为()距离。

A.
中心之间的水平
B.
边缘之间的水平
C.
中心之间的直线距离
D.
边缘之问的直线距离

【单选题】结冰探测器的作用

A.
探测机外有无结冰
B.
探测除冰系统的工作状况
C.
探测除冰指示系统的工作状况
D.
A,B,C都不正确

【简答题】DR的平板探测器类型有哪些

A.
非晶硒平板探测器
B.
多丝正比电离室
C.
非晶硅平板探测器
D.
CCD平板探测器
E.
以上都正确

【单选题】不由SDCU监控的烟雾探测器是()

A.
前货舱烟雾探测器
B.
后货舱烟雾探测器
C.
厕所烟雾探测器
D.
设备冷却烟雾探测器

【单选题】CT探测器的作用是

A.
探测患者位置是否准确
B.
接收X线并将其转换为电信号
C.
探测扫描时有无散射线
D.
将模拟信号转变为数字信号
E.
接收X线并检测有无散射线

【多选题】火灾探测器的选择,应符合( )

A.
对火灾初期有阴燃阶段,产生大量的烟和少量的热,很少或没有火焰辐射的场所,应选择感烟探测器

【单选题】智能感烟探测器火警时()。

A.
红灯闪亮
B.
绿灯闪亮
C.
黄灯闪亮
D.
红灯常亮

【多选题】火灾探测器有 ()等形式。

A.
温感探测器
B.
压感探测器
C.
湿感探测器
D.
光感探测器

【单选题】采用360°固定探测器的是

A.
第二代CT
B.
第三代CT
C.
第四代CT
D.
第五代CT
E.
电子束CT

【多选题】红外入侵探测器分为()。

A.
主动红外探测器
B.
被动红外探测器
C.
人体感应式控测器
D.
感温探测器

【单选题】探测器的作用是

A.
探测患者位置是否准确
B.
接收 X线并将其转换为电信号
C.
探测扫描时有无散射线
D.
将模拟信号转变为数字信号
E.
将微弱的电流进行放大

【单选题】火灾探测器有()、温感探测器、复合探测器等。

A.
气味探测器
B.
烟感探测器
C.
人脸探测器
D.
指纹探测器

【单选题】固体探测器的主要优点是()。

A.
相邻的探测器之间存在有缝隙
B.
有较高的光子转换效率
C.
晶体发光后余晖较长
D.
整个阵列中的各个探测器不易做得完全一致
E.
对X射线的不感应区较大
相关题目:
【单选题】将探测器接收的信息转换为数字信号的是
A.
信号放大器
B.
探测器
C.
A/D转换器
D.
信号比较器
E.
后组探测器
【单选题】两个相邻火灾探测器的距离为()距离。
A.
中心之间的水平
B.
边缘之间的水平
C.
中心之间的直线距离
D.
边缘之问的直线距离
【单选题】结冰探测器的作用
A.
探测机外有无结冰
B.
探测除冰系统的工作状况
C.
探测除冰指示系统的工作状况
D.
A,B,C都不正确
【简答题】DR的平板探测器类型有哪些
A.
非晶硒平板探测器
B.
多丝正比电离室
C.
非晶硅平板探测器
D.
CCD平板探测器
E.
以上都正确
【单选题】不由SDCU监控的烟雾探测器是()
A.
前货舱烟雾探测器
B.
后货舱烟雾探测器
C.
厕所烟雾探测器
D.
设备冷却烟雾探测器
【单选题】CT探测器的作用是
A.
探测患者位置是否准确
B.
接收X线并将其转换为电信号
C.
探测扫描时有无散射线
D.
将模拟信号转变为数字信号
E.
接收X线并检测有无散射线
【多选题】火灾探测器的选择,应符合( )
A.
对火灾初期有阴燃阶段,产生大量的烟和少量的热,很少或没有火焰辐射的场所,应选择感烟探测器
【单选题】智能感烟探测器火警时()。
A.
红灯闪亮
B.
绿灯闪亮
C.
黄灯闪亮
D.
红灯常亮
【多选题】火灾探测器有 ()等形式。
A.
温感探测器
B.
压感探测器
C.
湿感探测器
D.
光感探测器
【单选题】采用360°固定探测器的是
A.
第二代CT
B.
第三代CT
C.
第四代CT
D.
第五代CT
E.
电子束CT
【多选题】红外入侵探测器分为()。
A.
主动红外探测器
B.
被动红外探测器
C.
人体感应式控测器
D.
感温探测器
【单选题】探测器的作用是
A.
探测患者位置是否准确
B.
接收 X线并将其转换为电信号
C.
探测扫描时有无散射线
D.
将模拟信号转变为数字信号
E.
将微弱的电流进行放大
【单选题】火灾探测器有()、温感探测器、复合探测器等。
A.
气味探测器
B.
烟感探测器
C.
人脸探测器
D.
指纹探测器
【单选题】固体探测器的主要优点是()。
A.
相邻的探测器之间存在有缝隙
B.
有较高的光子转换效率
C.
晶体发光后余晖较长
D.
整个阵列中的各个探测器不易做得完全一致
E.
对X射线的不感应区较大