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1.计算:-26÷13
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2.Exercise05-Topic06-Risk and ReturnChapter 13— Questions and Problems 23、26
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3.计算:-15÷(-13)
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4.计算〖3 〗^10 mod 13=(),〖5 〗^16mod 13=()
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5.26 + 26 =
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6.【多选题】13 13 13 13
A. 13 13
B. 13 13
C. 13 13
D. 13 13
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7.data<-data.frame( A=gl(3,20,60), B=gl(4,5,60), Y=c(23, 25, 21, 14, 15, 20, 17, 11, 26, 21,
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8.第四章:2, 6, 7, 11, 15, 24, 25, 26, 28, 32, 34第五章:5, 7, 11, 13
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9.【填空题】13 13 13 13
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10.26