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【单选题】
在x和y的直线相关分析中,r的绝对值越大,则()。A.
各散点越靠近回归直线
B.
各散点越离开回归直线
C.
回归直线对x轴越倾斜
D.
回归直线对x轴越平坦
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【简答题】Supply the missing words in the blanks of the message. Dear Sirs, Thank you for your letter of August 20, i__ 1 __ us that you are in the m 2 for Chinese toys. To give you a general idea of the goods...
【单选题】— I hope you won ’ t disappoint us in the final, Andy. — _______ . I will try my best not to let you down. A. Believe in me B. I am afraid not C. You ’ re wrong
A.
1
B.
2
C.
3
【简答题】根据句意及首字母或汉语提示完成单词 Mary eats a lot of i in summer. I play the p (钢琴) every morning. I don't like eating (炸薯条). Do you want to eat some h in the KFC. I hope you can play t with me in the sport center.
【简答题】阅读理解。 Dear Mrs Smiths, I was a student of yours in Grade Six, and I hope you still remember me. I'm writing this letter because I want to let you know that the school year with you was important and s...
【简答题】食品，含牛肉15%，茄子55%，鱼块25%，猪肉5%
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