问题 单项选择题

关于普通快滤池说法错误的是()。

A.采用大阻力配水系统

B.采用无烟煤滤料

C.运行方式为减速过滤或是几个滤间为一组的恒水头恒速过滤

D.设有滤池进水、滤池出水、反冲洗进水、反冲洗排水四套管道系统

答案

参考答案:B

解析:

应采用石英砂滤料或无烟煤石英砂双层滤料。

阅读理解

阅读理解。

     The week I turned 50, my marriage came to a sudden end. My house, furniture and everything I'd owned

was sold to pay debts that I didn't even know I had. In a week I had lost my husband, my home and my

parents who had refused to accept a divorce (离婚) in the family. I'd lost everything except my four teenage

children. I used every penny I had to buy five plane tickets from Missouri to Hawaii. Everyone said I was crazy

to think I could just run off to an island and survive. I was afraid they were right.

     Knowing that no one in the world was going to help us, I rented a cheap apartment. I worked 18 hours a

day and lost 30 pounds because I lived on one meal a day. One night as I walked alone on the beach, I saw the

red orange glow of the lava (火山岩) pouring out of Kilauea Volcano in the distance. It was time to live my

imagination!

     The next day, I quit my job and invested my last paycheck in art supplies and began doing what I loved. I

hadn't painted a picture in 15 years. I wondered if I could still paint. My hands trembled the first time I picked

up a brush. But before an hour had passed, I was lost in the colors spreading across the canvas (画布) in front

of me. And as soon as I started believing in myself, other people started believing in me, too. The first painting

sold for $ 1500 before I even had time to frame it.

     The past six years have been filled with adventures. My children and I have gone swimming with dolphins,

watched whales and hiked around the crater (火山口) edge of the volcano. We wake up every morning with

the ocean in front of us and the volcano behind us. The dream I had more than 40 years ago is now reality. I'm

living freely and happily ever after.

1. It can be inferred from the passage that ____.

A. the writer didn't expect her marriage had ended in divorce

B. the writer's parents encouraged her to divorce

C. the writer's husband took away most of her property

D. there was something wrong with the writer's nerves

2. According to the passage, which of the following statements is NOT true?

A. The writer was sure she could survive in Hawaii.

B. The writer with her children met with many difficulties when they first arrived in Hawaii.

C. The writer had ever done paintings before.

D. The writer doubted if she could paint well at first.

3. The writer's dream was to ____.

A. live in nature with animals

B. live near volcanoes and oceans

C. become a successful painter

D. live a free life

4. The best title for this passage is "____".

A. My broken marriage

B. My life after divorce

C. Adventures over 6 years

D. Hard life in Hawaii

单项选择题