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【简答题】
对结核病进行的特异性预防为_______。
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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...
【多选题】“一次测试,多处适用”指的是哪个认证体系,并且范围是多大?
A.
CB 体系基于国际 IEC 标准, CB 体系利用 CB 测试证书来证实产品样品已经成功地通过了适当的测试。
B.
IECEE CB 体系
C.
测试除传统的电器零部件、电线电缆、插头等认证之外同样也可核发 EMC 标志以及 VDE-GS 标志
D.
目前电磁兼容性 (EMC) 已经纳入 CB 体系
【单选题】There are two main types of abstracts: informative and .
A.
concise
B.
clear
C.
descriptive
D.
informative
【单选题】Does the essay employ a directional or informative pattern of development?
A.
directional
B.
informative
【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
【判断题】An informative speech aims to convey knowledge and understanding.()
A.
正确
B.
错误
【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...
【单选题】During the parallel operation, ______ must be used.
A.
ammeter
B.
voltmeter
C.
synchroscope
D.
all the above
【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.
【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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