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【简答题】
使用mysql语句消除图书作者名字中包含的空格
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举一反三
【单选题】Which of the following data collection methods allows the researcher to collect the greatest variety and depth of raw data? ( )
A.
mail questionnaire.
B.
telephone interview
C.
observation techniques
D.
personal interviews
E.
computer/fax questionnaires
【简答题】阅读理解。 Joey Wilson : I like to collect things. I have a great soccer card collection. I have ten cards from England, five from Japan, and twelve cards from the USA. I often show the cards to my friends...
【判断题】A collection means an arrangement whereby the seller draws a draft on the buyer and authorizes his bank to collect.
A.
正确
B.
错误
【简答题】简述Collection和Collections的区别。
【简答题】简述Collection 和 Collections的区别。
【简答题】简述Collection和Collections的区别
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