从疾病生态学的角度来看，与疾病发生有关的三大因素是A．患者、病原携带者、非患者 B．

CT用X线管的阳极散热率是

A．0.3～0.5 MHu/min
B．0.5～1 MHu/min
C．1～1.5 MHu/min
D．1.5～2 MHu/min
E．2～2.5 MHu/min

阅读下面的短文，然后按照要求写一篇150词左右的英语短文。

If you like to break things when you are unhappy, the Nanjing Zhonghua Middle School is the school for you. This term, Nanjing Honghua Midlde School will build a "stress wall" to help students who feel unhappy because of schoolwork or for other reasons.

Tao Dehua, a leader at the school said the idea of a stress wall started when footprints were found on some newly painted walls and some school windows were broken.

"These things happen because some students feel lots of pressure from their studies or because they don't get along well with other students. When under stress, the body get ready to either run or fight and becomes very nervous. Hitting the wall can help relax the body and take away stress," Tao said.

"Tests and homework make me Sad," said Lu Yan, a junior girl."I can't wait to hit the wall. It will help me a lot with my problems."     

Another girl student who wouldn't give her name said that the wall won't help."Mainly because it can't talk," she said. "I need to talk to someone when I'm sad."

【写作内容】

1、以约30个词概括这段短文内容；

2、然后以约120个词就“Should the stress wall be built"这个主题发表你的看法，并

包括以下要点：

(1)学生的压力来源；

(2)是否该建此墙；

(3)提供一些其他有效的减压方法。

【写作要求】

l、可以参照阅读材料但不得直接引用原文的句子；

2、作文中不得出现真实的姓名和学校名称。

【评分标准】

概括准确，语言规范，内容合适，篇章连贯。

_______________________________________________________________________________________________________________________________________________________________________________________________________________

利率的( )，可以通过紧缩或扩张信用，从而对经济发挥调节作用。

A．结构机制
B．市场机制
C．水平机制
D．联动机制

检查行吊电路时，配电柜开关上是否要挂“有人工作，禁止合闸”警示牌？为什么？

如图进入华为T系列（V100R005）存储阵列设备的添加LUN映射操作，以下关于配置LUN映射说法中，正确的是（）

A.私有LUN可以映射给主机——私有LUN不支持映射主机

B.LUN可以映射给默认主机组下的主机——无法映射给默认主机组主机

C.当存储设备支持文件引擎集群时，LUN不能映射给作为文件引擎集群下的主机组下的主机

D.对于安装MACOSX的主机，首次添加LUN映射后请重新启动，否则主机无法发现映射的LUN