【多选题】抽样调查的特点有( )
C.
使用部分单位的指标数值去推断和估计总体的指标数值
【单选题】若有以下定义和语句 int a=4,b=3,*p,*q,*w; p=&a;q=&b;w=q;q=NULL; 以下选项中错误的是
【单选题】( ) is the total weight of the commodity and the tare, that is, the package weight.
【单选题】若有以下定义和语句, 此处 b 的值是( ) int a=5,b b=a++ ;
【简答题】Before the election, Erin White has been haunted by the question of whether ______. A) she could obtain her MBA degree B) she could go as far as she wanted in life C) she was overshadowed by her white...
【简答题】什么是抽样调查?它有何特点? 2.什么是抽样误差?其大小受哪些因素影响? 3.随机抽样调查的组织形式有哪些? 4.简述分层抽样的优点、缺点及适用性。
【单选题】“毛重;净重;公重”,正确的翻译为:( )。
A.
gross weight; clean weight; dry weight
B.
total weight; clean weight; dry weight
C.
gross weight; net weight; conditioned weight
D.
total weight; net weight; conditioned weight
【单选题】若有以下定义和语句 int a=5,b; b=++a;此处b的值是:( )
【单选题】若有以下定义和语句 int a=4,b=3,*p,*q,*w; p=&a; q=&b; w=q; q=NULL; 则以下选项中错误的语句是______。