【单选题】若使用普通最小二乘法估计的模型残差的一阶自相关系数为 0.8 ,则 DW 统计量的值近似为
【单选题】有以下程序: Class Date {public: Date(int y,int m,int d); {year=y; month=m; day=d;} Date(int y=2000) {year=y; month=10; day=1;) Date(Date &D) {year=d.year; month=d.month; day=d.day;} void print() {cout<<yea...
【单选题】有以下程序: class Date { public: Date(int y,int m,int D) ; { year =y; month=m; day=d; } Date(int y=2000) { year=y; month=10; day=1; } Date(Date &D) { year=d.year; month=d.month; day=d.day; } void print () ...
【简答题】用所给词的适当形式填空(5分): 小题1: I have been in No. 2 Middle School for two years. I don’t worry about _______________ (not have) new good friends. 小题2: The big birthday cake _____________________ (divide) into ...
【简答题】I. Fill in the blanks with the words or expressions given below. Change the forms where necessary. supply divide impact require dedicate bless with conserve desire continu...
【简答题】用所给单词或词组的正确形式填空。 consist of,divide …into,leave out,take the place of,break away from, in memory of,have influence on,arrange for,refer to,available 1. The TV series from Korea _____a strong _____ chil...
【单选题】有以下程序: class Date { public: Date(int y,int m,int d) { year = y month = m day = d } Date(int y = 2000) { year = y month = 10 day = 1 } Date(Date &d) { year = d.year month = d.month day = d.day } void p...
【单选题】“I will divide you into two teams.”的中文表述是以下哪个?