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【简答题】
已知：反比例函数 y=- 6 x ． （1）若将反比例函数 y=- 6 x 的图象绕原点O旋转90°，求所得到的双曲线C的解析式并画图； （2）双曲线C上是否存在到原点O距离为 13 的点P？若存在，求出点P的坐标．
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【简答题】根据下面信函,B方经理刘五于2019年6月2日接到A方的接受通知,并于当天在广州填制合同。请你代刘五经理填制如下的销货确认书(销货确认书号码为GT03-25896)。请用英语填写。 A方: M/S HAIDAROUS TRADING 地址:P.O. BOX 2215, DUBAI, UAE B方:广东纺织品进出口广通贸易有限公司 (GUANGDONG TEXTILES IMPORT & EXPOR...
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【单选题】There are two main types of abstracts: informative and .
A.
concise
B.
clear
C.
descriptive
D.
informative
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【单选题】GS.P From A是一种(?? )证明书。
A.
品质证明书
B.
普惠制产地证明书
C.
重量证明书
D.
动植物检疫证明书
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【单选题】Does the essay employ a directional or informative pattern of development?
A.
directional
B.
informative
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【判断题】PGP软件中共涉及三种密钥：Public Key ,Private Key,Session Key
A.
正确
B.
错误
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【简答题】A support bar is attached to the vehicle structure via a base console for the whole door mechanism. The bar takes all the weight of the door panel and provides the parallel position of the door leaf t...
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【单选题】During the parallel operation, ______ must be used.
A.
ammeter
B.
voltmeter
C.
synchroscope
D.
all the above
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【简答题】重叠需求理论中,如果各国的人均收入水平不断提高,( )便不断出现,贸易也相应地不断扩大。
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【单选题】Which of the following statement about an informative abstract is NOT true?
A.
An informative abstract includes the results, conclusions, and recommendations, apart from the information about the purpose, scope, and methods used.
B.
An informative abstract is self-contained, offering the reader the key points with specific quantity and quality, giving the main data, specific results and methods.
C.
An informative abstract can refer to charts, diagrams or tables, and cite sources or materials used.
D.
An informative abstract is often used in writing texts describing experimental work, documents centered upon one theme, and papers for an international conference.
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【多选题】以下属于德国产品安全认证GS特点的是（）
A.
自愿认证
B.
由经德国政府授权之独立之第三方进行检测并核发GS标志证书
C.
必须交年费
D.
无需进行工厂审查
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相关题目：
【简答题】根据下面信函,B方经理刘五于2019年6月2日接到A方的接受通知,并于当天在广州填制合同。请你代刘五经理填制如下的销货确认书(销货确认书号码为GT03-25896)。请用英语填写。 A方: M/S HAIDAROUS TRADING 地址:P.O. BOX 2215, DUBAI, UAE B方:广东纺织品进出口广通贸易有限公司 (GUANGDONG TEXTILES IMPORT & EXPOR...
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【单选题】There are two main types of abstracts: informative and .
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C.
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【单选题】GS.P From A是一种(?? )证明书。
A.
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【单选题】Does the essay employ a directional or informative pattern of development?
A.
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B.
informative
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【判断题】PGP软件中共涉及三种密钥：Public Key ,Private Key,Session Key
A.
正确
B.
错误
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【简答题】A support bar is attached to the vehicle structure via a base console for the whole door mechanism. The bar takes all the weight of the door panel and provides the parallel position of the door leaf t...
查看完整题目与答案
【单选题】During the parallel operation, ______ must be used.
A.
ammeter
B.
voltmeter
C.
synchroscope
D.
all the above
查看完整题目与答案
【简答题】重叠需求理论中,如果各国的人均收入水平不断提高,( )便不断出现,贸易也相应地不断扩大。
查看完整题目与答案
【单选题】Which of the following statement about an informative abstract is NOT true?
A.
An informative abstract includes the results, conclusions, and recommendations, apart from the information about the purpose, scope, and methods used.
B.
An informative abstract is self-contained, offering the reader the key points with specific quantity and quality, giving the main data, specific results and methods.
C.
An informative abstract can refer to charts, diagrams or tables, and cite sources or materials used.
D.
An informative abstract is often used in writing texts describing experimental work, documents centered upon one theme, and papers for an international conference.
查看完整题目与答案
【多选题】以下属于德国产品安全认证GS特点的是（）
A.
自愿认证
B.
由经德国政府授权之独立之第三方进行检测并核发GS标志证书
C.
必须交年费
D.
无需进行工厂审查
查看完整题目与答案
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