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【单选题】
关于getline( )函数的下列描述中,( )是错误的。A.
该函数是用来从键盘上读取字符串的
B.
该函数读取的字符串长度是受限制的
C.
该函数读取字符串时遇到终止符就停止
D.
该函数中所使用的终止符只能是换行符
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反馈参考答案：
举一反三
【单选题】In calculating the regression equation linking two variables, the standard formulae for the regression coefficients are given in terms of X and Y. Which of the following is true?
A.
X must be the variable which will be forecast
B.
It does not matter which variable is which
C.
Y must be the dependent variable
D.
Y must be the variable shown on the vertical axis of a scatter diagram
【判断题】The coefficient of determination gives the proportion of the variability in the dependent variable that is explained by the regression equation.
A.
正确
B.
错误
【简答题】科技查新的类型有哪些?科技查新的流程有哪些?
【单选题】Changing the unit of measurement of any independent variable, where log of the dependent variable appears in the regression:
A.
affects only the intercept coefficient.
B.
affects only the slope coefficient.
C.
affects both the slope and intercept coefficients.
D.
affects neither the slope nor the intercept coefficient.
【简答题】《殽之战》中,晋文公去世,其子晋襄公“墨衰絰”,穿上黑色的丧服以示哀痛。这体现了古代的哪个礼节?A. 凶礼
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