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自测试题一 填空每空2分,共20分) 1、设事件AB相互独立,且P(A)=0.3,P(B)=0.2,则P(A+B)=

人教A版高中数学必修3第二章 统计2.2 用样本估计总体课件(2)

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Text 1 Organization of Computer System Components Exercises Fill in the blanks with appropriate words according to the text.(根据课文内容填空) (1) Acomputer is a fast and accurate symbol manipulating system (2) The key board of a workstation

Unit 1 About Computer Text 1 Can You recognize Them? or Modern computers are electronic and digital devices. Figure 1-1 shows the basic organization of a personal computer, Figure 1-2 shows a notebook computer

计算机英语试题 一、词汇(选择一个最合适的词汇,将对应的英文字母填入空格内。每题2分,共20分) 1, A is used to communicate with another computer over telephone lines. A. keyboard B. modem C. mouse D. printer

Objectives of the class (1)A better understanding of \writing\ (2)A better understanding of what the students have brought into the

（1). Writing competence(paragraph level) Band 4: Write a 150-to- 200-word article in 30 minutes/ a piece of 60 ord applied writing in 10 minutes （2)thinking ability(classification, analysis, contrast or comparison etc)

Text A All the Cab Had Was a Letter Part 1 Objectives Part 2 Cultural Notes Part 3 Text Structure Part 4 Language Points Part Content Questions