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【多选题】
[机械制图部分][中职和高职和教师][易] 常见回转体中,其某个投影可能为一个圆的有( )。
A.
圆柱
B.
圆锥
C.
圆台
D.
圆环
E.
球
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参考答案：
举一反三
【判断题】如果各种商品价格平均上涨5%，销售量平均下降5%，则销售额指数不变。(    )
A.
正确
B.
错误
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【判断题】Who is命令通过查询一个域名服务器,得到一个域名的相关信息。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Why haven't British government bodies initiated any studies?
A.
Because they do not take the problem of sleepy drivers on motorways as of great significance.
B.
Because they have not been aware of the seriousness of the problem of sleepy drivers.
C.
Because they have no figures on the number of accidents caused by drivers' sleepiness.
D.
Because they plan to support relevant researches or a general study on 'driver behaviour'.
查看完整题目与答案
【单选题】People will not believe that Internet can put an end to war if they ______.
A.
do not take misunderstanding as the reason for war
B.
can control hate speech and intolerance on the Internet
C.
efficiently foster the Internet as a means of communication
D.
know that Internet can advocate war
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【单选题】Do not take vegetarians to steak restaurants.
A.
True
B.
False
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【判断题】布特列洛夫首次提出 “ 化学结构 ” 这一术语,他认为分子决不是原子的简单堆积,而是原子按一定顺序的化学结合。
A.
正确
B.
错误
查看完整题目与答案
【单选题】AAA在计算机上实现的数据加密，其加密或解密变换是由（）控制实现的。
A.
人工
B.
程序
C.
电路
D.
密钥
查看完整题目与答案
【单选题】These figures do not take into account the changes that have taken place in recent years.
A.
consider
B.
call
C.
catch
D.
cancel
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【单选题】在计算机上实现的数据加密其加密或解密变换是由（）控制实现的
A.
密钥
B.
程序
C.
电路
D.
人工
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【单选题】Do not take mouth -to -mouth breathing unless you are certain that the victim has no pulse.
A.
Y
B.
N
C.
NG
查看完整题目与答案
相关题目：
【判断题】如果各种商品价格平均上涨5%，销售量平均下降5%，则销售额指数不变。(    )
A.
正确
B.
错误
查看完整题目与答案
【判断题】Who is命令通过查询一个域名服务器,得到一个域名的相关信息。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Why haven't British government bodies initiated any studies?
A.
Because they do not take the problem of sleepy drivers on motorways as of great significance.
B.
Because they have not been aware of the seriousness of the problem of sleepy drivers.
C.
Because they have no figures on the number of accidents caused by drivers' sleepiness.
D.
Because they plan to support relevant researches or a general study on 'driver behaviour'.
查看完整题目与答案
【单选题】People will not believe that Internet can put an end to war if they ______.
A.
do not take misunderstanding as the reason for war
B.
can control hate speech and intolerance on the Internet
C.
efficiently foster the Internet as a means of communication
D.
know that Internet can advocate war
查看完整题目与答案
【单选题】Do not take vegetarians to steak restaurants.
A.
True
B.
False
查看完整题目与答案
【判断题】布特列洛夫首次提出 “ 化学结构 ” 这一术语,他认为分子决不是原子的简单堆积,而是原子按一定顺序的化学结合。
A.
正确
B.
错误
查看完整题目与答案
【单选题】AAA在计算机上实现的数据加密，其加密或解密变换是由（）控制实现的。
A.
人工
B.
程序
C.
电路
D.
密钥
查看完整题目与答案
【单选题】These figures do not take into account the changes that have taken place in recent years.
A.
consider
B.
call
C.
catch
D.
cancel
查看完整题目与答案
【单选题】在计算机上实现的数据加密其加密或解密变换是由（）控制实现的
A.
密钥
B.
程序
C.
电路
D.
人工
查看完整题目与答案
【单选题】Do not take mouth -to -mouth breathing unless you are certain that the victim has no pulse.
A.
Y
B.
N
C.
NG
查看完整题目与答案
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