计算题： 已知水样悬浮物的量为100mg/L，滤膜和称量瓶前后称重分别为49.633

阅读理解。

       One evening, Mr and Mrs Brown with Mr and Mrs White were on their way home. It was very hot and

they felt thirsty. They went to a restaurant. A waiter came to their table and asked what they wanted to have.

One lady said that she only wanted black tea. One of the gentlemen asked the other whether he wanted some

sugar in his milk. Mrs Brown said that her husband and she didn't like beer. One of the Whites said she wanted

coffee. 

       Then the waiter brought them a cup of black tea, a glass of milk, a mug (大杯) of beer and a cup of

coffee. 

       What did each of them want to have?

1. They went to a restaurant because ______. [ ]

A. they are hungry

B. it was very hot

C. they are thirsty

D. both B and C

2. Mrs Brown wanted to have ______. [ ]

A. a cup of black tea

B. a glass of milk

C. a mug of beer

D. a cup of coffee

3. Mr Brown wanted to have ______. [ ]

A. a cup of black tea

B. a glass of milk

C. a mug of beer

D. a cup of coffee

4. Mrs White wanted to have ______. [ ]

A. a cup of black tea

B. a glass of milk

C. a mug of beer

D. a cup of coffee

5. Mr White wanted to have ______. [ ]

A. a cup of black tea

B. a glass of milk

C. a mug of beer

D. a cup of coffee

萎缩细胞在电镜下，最显著的特点是（）

A.线粒体增多

B.肌丝增多

C.滑面内质网增多

D.自噬泡增多

E.粗面内质网增多

如图所示，把电阻、电感器、电容器并联接到一交流电源上，三个电流表的示数相同．若保持电源电压不变，而将频率加大，则三个电流表的示数I₁、I₂、I₃大小的关系是（　　）

A．I₁=I₂=I₃

B．I₃＞I₁＞I₂

C．I₂＞I₁＞I₃

D．I₁＞I₂＞I₃

(一)
某城市给水工程项目，该工程项目属大中型工程项目，施工之前，项目监理机构编制了施工组织设计，设计单位组织有关单位对施工图设计会审，施工单位作了技术交底，建设单位对施工单位进行了施工技术交底。
在施工过程中，监理单位及时编制了施工技术文件，并按《建设工程文件归档整理规范》(CB/T 50320)的要求进行归档。
问题

市政基础设施工程施工技术文件应由谁在什么时间报当地城建档案管理机构归档

请你举例说明在进出口贸易中是如何定义商品品质的