搜题请搜索小程序“爱下问搜题”
问题 单项选择题

测定某地区130名正常成年男子样本红细胞数，要估计该地正常成年男子红细胞均数，95%可信区间范围是（）。

A．υ±1.96

B．±1.96

C．±1.96

D．υ±2.58

E．±2.58

答案

参考答案：C

多项选择题

具体而言，目前房地产经纪行业的种种不诚信行为主要包括( )等。

A．赚取不正当差价

B．按规定收取佣金或中介费

C．业务操作简单化，不规范

D．不当承诺和不当诱导

E．不告知甚至有意隐瞒重要信息
查看答案
填空题

A: Could I invite my friends to my house for the Dragon Boat Festival, Mom
B: (76) . That sounds like fun.
A: Yeah. Ummm...Could I borrow some money
B: (77)
A: I need to buy some ingredients to make Zongzi.
B: I’m going to the supermarket and I can buy what you need.
A: (78) .
B: You’re welcome. Oh, could you clean your room
A: (79)
B: You need to clean it again for your friends.
A: OK, Dave is coming early. (80) .
B: All right. By the way, do you know how to make Zongzi Maybe we can make Zongzi together. And then we can give some to your grandparents as well.
A: Perfect.
查看答案