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【单选题】
根据以下资料回答 41~45 题 A large number of documents are used in the modern international trade such as marine bill ot lading, letter of credit, insurance policy, commercial invoice, packing list, air waybill, certificate of origin, packing list, multimodal transport document, parcel post receipt, rail waybill etc. The( 41 ) evidences the contract of carriage of goods by at least two modes of transport. The ( 42 ) evi-dences the contract of carriage of goods by air. Unlike B/L, ( 43 )evidences the contract of carri-age but is not a document of title and is not negotiable. The document issued by the carrier or his a-gent to enable the consignee or his forwarding agent to take delivery of the imported cargo from the vessel or port is called( 44 ). ( 45 ) is a document issued by the authorized body in the exporter' s country stating the country of origin of the goods. 第 41 题
A.
MTD
B.
B/L
C.
AWB
D.
L/C
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【单选题】下面哪一个不是局域网的关键技术(    )。
A.
拓扑结构    
B.
传输介质
C.
局域网的体系结构    
D.
介质访问控制方法
【单选题】访问控制的关键技术是( )
A.
密码学
B.
身份认证
C.
生物识别
D.
数字签名
【判断题】水文缆车既可以作为工作人员进行测验操作的工具,也可以方便行人渡河。
A.
正确
B.
错误
【单选题】—Shall I help you move it to the corner? — . I can do it myself. [     ]
A.
No,thanks
B.
Not at all
C.
Help yourself
D.
Never mind
【单选题】通常认为,决定局域网特性的关键技术有三个,它们是 。
A.
传输介质、差错检测方法和网络操作系统
B.
通信方式、同步方式和拓扑结构
C.
数据编码技术、介质访问控制方法和数据交换技术
D.
传输介质、拓扑结构和介质访问控制方法
【单选题】I can’t help _____  myself on passing the examination.
A.
congratulating
B.
celebrating
C.
greeting
D.
enjoying
【单选题】I made the cake by myself .Help _______ , Tom.
A.
ourselves
B.
myself
C.
themselves
D.
yourself
【判断题】广西在常住人口中、少数民族人口总数在全国第一。
A.
正确
B.
错误
【单选题】I ______ rather solve the problems in my farm myself than seek the help of other people.
A.
should
B.
shall
C.
would
D.
will
【简答题】help myself relax
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