管道上的取源部件应在( )安装。A．管道预制前 B．管道安装前_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

管道上的取源部件应在( )安装。

A．管道预制前

B．管道安装前

C．管道安装的同时

D．管道安装后

答案

参考答案：C

阅读理解

C

	This is Yi Jianlian. He is from Guangdong, China. He is a basketball star (篮球明星). His QQ number is 65432879.
	Who is he? He is Phelps. He is from the U.S.A. His QQ number is 38685590.
	Who is he? He is Xie Tingfeng. Where is he from? He is from Hong Kong (香港). His QQ number is 34569869.
	She is an actress (女演员). She is from Korea (韩国). She is very nice. Her QQ number is 35681168.

根据所给信息，选择最佳答案。(10分)
小题1:           QQ number is 38685590.
A.Yi Jianlian’s       B. Xie Tingfeng’s     C. Phelps’
小题2:           is a basketball star.
A. 图a             B. 图b             C. 图c
小题3:Phelps is from           .
A.China             B. England          C. the USA
小题4:There are          Chinese people (中国人)in the form(表格).
A. one               B. two              C. three
小题5: The people in the form(表格) are from           countries. (国家)
A.two               B.three             C.four

单项选择题

关于x的方程x²+2(m-2)x+m²=0有两个不相等的实数根，则m的取值范围是 ( )。

A．m＞1

B．m＜1

C．m＞-1

D．m＜-1