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【单选题】
()是指按照货物的名称、重量、尺寸、分区、、保存期限或其他特性等实际情况来编号。A.
后位数编码
B.
实际意义编码
C.
分组编码
D.
顺序码
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【单选题】Where should you keep your valuables while staying in a hotel?
A.
In the hotel safe.
B.
In your pockets.
C.
In your traveling bag.
D.
In a bedside container.
【单选题】Which of the following should a person do to protect their personal information?
A.
Avoid using special characters in passwords.
B.
Do not provide information to people who contact you by e-mail.
C.
Avoid providing answers that are hard to guess as responses to security questions.
D.
Do not enter those Web sites where https:// appears in the Web browser.
【简答题】习题2-7习题 :3题,6题,13题.
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