“黄家日晡所发热，而反恶寒，此为______得之：膀胱急，少腹满，身尽黄，额卜黑．足

正态分布μ±1.96s的面积占总面积的（）

A.95.00%

B.68.27%

C.95.45%

D.98.00%

E.99.00%

关于建筑石膏技术性质的说法，错误的是（ ）

A．凝结硬化快

B．硬化时体积微膨胀

C．硬化后空隙率高

D．防火性能差

短文改错。

My family has been going through hard times late.I don't let that to get me down.So I started

working in my spare times.One weekend I was going to buy a pair of new shoes by the money

I'd saved.That same weekend my mom was upset because my grandparents needed some money

for one of their bills.So she didn't have enough money to give them.So I got a envelope and wrote

my grandparents a letter,say I love them and I would send them the money.It made my mom cry

tears of joy after learning of that I had done.It makes my grandparents cry too because they didn't

know a teen as me could care so much.

( )单位应当参与建设工程质量事故分析，并对因设计造成的质量事故，提出相应的技术处理方案。

A．建设

B．监理

C．施工

D．设计

电子邮件地址的格式是___________。

A．用户名@主机域名

B．主机域名@用户名

C．用户名.主机域名

D．主机域名.用户名