根据资料，就我国当前校园安全存在的问题，写一份供领导参阅的资料。 要求：紧扣资料，

书面表达。

     音乐令人轻松快乐，你也喜欢音乐吧，谈谈你喜欢的音乐及音乐人。

     要求：

     (1) 能用定语从句表达其中的一些句子。

     (2) 条理清楚，语句通顺。不少于80个词。

检测限与定量限的区别在于

A．定量限的最低测得浓度应符合精密度要求

B．定量限的最低测得量应符合准确度要求

C．检测限是以信噪比(2:1)来确定最低水平，而定量限是以信噪比(3:1)确定最低水平

D．定量限规定的最低浓度应符合一定的精密度和准确度要求

E．检测限以ppm、ppb表示，定量限以%表示

阅读理解。

信息匹配

阅读下列应用文及相关信息，并按照要求匹配信息。

以下是Knox 大学所提供的一些课程：

以下是拟选择课程的一些学生，请匹配人物与他们所相适应的课程。

1. Jason Smith - graduated from high school last year and is now working as a sales assistant in a

supermarket. Wants to get promoted but he needs to have better skills at managing people to achieve

this. He works from 1.30 pm to 9.30 pm Monday to Fridays.

2. Julie Bender - is planning to travel to Europe next year and is interested in finding out more about

some of the places she is planning to visit or learning a European language. Prefer to study after she

finishes work at 6pm rather than on weekends.

3. Hymen Nerdstrom - a senior high school student who wants a course that will help improve  at

least one of his weakest subjects, modern history and economics. Finishes school each weekday at

5 pm. every Tuesday and Thursday evening has football practice until 7pm.

4. Ron Woods- works in a music shop Monday to Friday from 9 am to 4 pm. He is interested in

studying a course that will give him the skill to successfully run his own business. He also plays in a

band every Sunday night which he must attend.

5. Jill Seawood - left school without graduating 5 years ago, but is now interested in continuing her

education. She is interested in history and languages and wants a course that will not only help her

learn more about either topic but will also help her to get accepted into university.

业主( )选择适合自己的方式来管理自己的物业。

A．有时有权
B．有时无权
C．有权
D．无权

战国时代交通发达，大量军队渡黄河，在黄河上架设了第一座桥梁，是什么类型的桥？