【题目】 【翻译】用户认证

1、[单选题]When you send a document electronically, you can also sign it. This is called ______ signature.

• A、online
• B、digital
• C、virtual
• D、simulated

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2、[单选题]A ______ copy is a copy of a current file made in order to protect against loss or damage.

• A、hard
• B、backup
• C、soft
• D、file

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3、[单选题]The abbreviation FPGA stands for Field ________Gate Array.

• A、Program
• B、Programmable
• C、Programming
• D、Programmer

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4、[单选题]To save time and bandwidth, both images and other files are often compressed before being ________.

• A、transferred
• B、transported
• C、transmitted
• D、traversed

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5、[单选题]To access a page on the WWW, one needs a _______ that usually consists of three parts: a controller, a method, and an interpreter.

• A、router
• B、code
• C、password
• D、browser

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