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【单选题】
下列关于搜索引擎的原理说法不正确的是______。
A.
全文搜索引擎一般都有个“网络蜘蛛”，它扫描一定范围内的网站，并沿着网络上的链接从一个网页到另一个网页，采集网页资料
B.
搜索引擎有一个索引数据库，网络机器人或网络蜘蛛采集的网页，经过其他程序进行分析，根据一定的相关度法进行大量的计算建立网页索引，添加到这个索引数据库中
C.
当你输入关键词进行查询时，搜索引擎会从的数据库中找到符合该关键词的所有相关网页的索引呈现给我们。所以，当我们以同一关键词用不同的搜索引擎查询时，搜索结果是相同
D.
和全文搜索引擎一样，分类目录的整个工作过程也同样分为收集信息、分析信息和查询信息三部分，只不过分类目录的收集、分析信息两部分主要依靠人工完成
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参考答案：
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【简答题】Have you heard the saying: “ If you can ’ t find it, build it ” ? Well, that ’ s what Maddie Bradshaw did. The 17-yer-old girl is from Texas, USA. When Maddie couldn ’ t find fun magnets for her schoo...
查看完整题目与答案
【单选题】A car in a drag race started from rest and accelerated constantly to a velocity of 50 m/s when it reached the end of a 500-m road. What was the car’s rate of acceleration?
A.
−5.0 m/s2
B.
−2.5 m/s2
C.
0.5 m/s2
D.
2.5 m/s2
E.
5.0 m/s2
查看完整题目与答案
【单选题】— I've had a stomachache for two weeks. — You ____ to the doctor when it started. [     ]
A.
must go
B.
should go
C.
ought to have gone
D.
might have gone
查看完整题目与答案
【单选题】A car in a drag race started from rest and accelerated constantly to avelocity of 50m/s when it reached the end of a 500m road. What was thecar’s rate of acceleration?
A.
−5.0 m/s 2
B.
−2.5 m/s 2
C.
0.5 m/s 2
D.
2.5 m/s 2
查看完整题目与答案
【单选题】仓库有效面积是指（）
A.
仓库内所有建筑物所占平面面积之和；
B.
仓库用来存放物资区域所占面积之和
C.
库房、货棚、货场内计划用来储存物资的面积之和
查看完整题目与答案
【判断题】平面储存区是指平房仓库内的储存区
A.
正确
B.
错误
查看完整题目与答案
【单选题】我们右手 P 指指的是
A.
小指
B.
大拇指
C.
中指
D.
无名指
查看完整题目与答案
【单选题】Circle the best topic sentence for each of the following paragraphs. 1. For instance, last summer I found myself waiting in long lines seven times in one day! It all started when I decided to treat my...
A.
I'd bet that if scientifically analyzed, waiting in line would prove to be a major contribution to stress in human beings.
B.
The experience of waiting in line last summer exhausted me.
C.
When waiting in line, all we have to do is stand there and move a little, and just stand there some more.
查看完整题目与答案
【判断题】我们弹钢琴的手指是有编号的,双手都是从大拇指开始编号,大拇指是1指,食指是2指,中指是3指,无名指是4指,小拇指是5指。( )
A.
正确
B.
错误
查看完整题目与答案
【简答题】The period of engagement is the time between the marriage [S01] ________ and the wedding ceremony. Two people agree to marry when they decide to spend their lives together. The man usually gives the w...
查看完整题目与答案
相关题目：
【简答题】Have you heard the saying: “ If you can ’ t find it, build it ” ? Well, that ’ s what Maddie Bradshaw did. The 17-yer-old girl is from Texas, USA. When Maddie couldn ’ t find fun magnets for her schoo...
查看完整题目与答案
【单选题】A car in a drag race started from rest and accelerated constantly to a velocity of 50 m/s when it reached the end of a 500-m road. What was the car’s rate of acceleration?
A.
−5.0 m/s2
B.
−2.5 m/s2
C.
0.5 m/s2
D.
2.5 m/s2
E.
5.0 m/s2
查看完整题目与答案
【单选题】— I've had a stomachache for two weeks. — You ____ to the doctor when it started. [     ]
A.
must go
B.
should go
C.
ought to have gone
D.
might have gone
查看完整题目与答案
【单选题】A car in a drag race started from rest and accelerated constantly to avelocity of 50m/s when it reached the end of a 500m road. What was thecar’s rate of acceleration?
A.
−5.0 m/s 2
B.
−2.5 m/s 2
C.
0.5 m/s 2
D.
2.5 m/s 2
查看完整题目与答案
【单选题】仓库有效面积是指（）
A.
仓库内所有建筑物所占平面面积之和；
B.
仓库用来存放物资区域所占面积之和
C.
库房、货棚、货场内计划用来储存物资的面积之和
查看完整题目与答案
【判断题】平面储存区是指平房仓库内的储存区
A.
正确
B.
错误
查看完整题目与答案
【单选题】我们右手 P 指指的是
A.
小指
B.
大拇指
C.
中指
D.
无名指
查看完整题目与答案
【单选题】Circle the best topic sentence for each of the following paragraphs. 1. For instance, last summer I found myself waiting in long lines seven times in one day! It all started when I decided to treat my...
A.
I'd bet that if scientifically analyzed, waiting in line would prove to be a major contribution to stress in human beings.
B.
The experience of waiting in line last summer exhausted me.
C.
When waiting in line, all we have to do is stand there and move a little, and just stand there some more.
查看完整题目与答案
【判断题】我们弹钢琴的手指是有编号的,双手都是从大拇指开始编号,大拇指是1指,食指是2指,中指是3指,无名指是4指,小拇指是5指。( )
A.
正确
B.
错误
查看完整题目与答案
【简答题】The period of engagement is the time between the marriage [S01] ________ and the wedding ceremony. Two people agree to marry when they decide to spend their lives together. The man usually gives the w...
查看完整题目与答案
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