问题 问答题 简答题

悬浮液密度控制的意义是什么?

答案

参考答案:

悬浮液的密度直接影响实际分选密度的大小,为了提高选煤效率,减少实际分选密度的波动,要求进入分选机中悬浮液密度波动要小于±0.01g/cm3

阅读理解

阅读理解。

     LONDON Thursday Just Read-Eddy missed his girlfriend so made he flew back to Britain from Australia

to propose (求婚) to her. The problem is she did the same in the opposite direction.

     He and Anna even managed to miss each other when they sat in the same airport waiting room in Singapore

at he same time to wait for connecting flights.

     Anna, heartbroken, when she arrived at Eddy's Sydney flat to find he had flown to London, told The times:"It

was as though someone was playing a cruel joke on us."

     "He is the most romantic person I have ever known. I think our problem is that we are both quite impulsive

(冲动的) people. We are always trying to surprise each other."

     After an 11,000-mile flight across the globe, she was greeted by Eddy's astonished roommate asking what

she was doing.

     Eddy, a 27-year-old engineer taken year off to travel round Australia. But he was missing Anna, a 26-year

secretary, so much he got a job on a Sydney building site (工地) and started saving for a surprise.

     He then flew home to Britain and went to her flat armed with an engagement (订婚) ring, wine and flowers. 

     "I really missed Anna and I'd been thinking about her all the time. I was so excited when she phoned me

from Australia," he said.

     Eddy then asked Anna to marry him on the phone. "I didn't know whether to laugh or cry but I accepted,"

she said.

     Anna was given a tour of Sydney by Eddy's friends before going back home. Eddy and to stay in Britain

for two weeks because he could not change his ticket.

1. What does the last sentence of the first paragraph tell us?

A. Anna flew to Britain from Australia to marry him.

B. Anna flew to Australia from Britain to marry him.

C. Anna flew to Britain from Australia to propose to him.

D. Anna flew to Australia from Britain to propose to him.

2. The underlined word "miss"in paragraph 2 most probably means _____.

A. escape from

B. fail to understand

C. fail to meet

D. long to see

3. Eddy got a job on a Sydney building site because he _____.

A. wanted to travel round Australia

B. needed money to pay his daily cost

C. was an engineer at this building site

D. hoped to make money from this job

4. Which of the following is TRUE about Eddy and Anna according to the text?

A. Eddy proposed to Anna on the phone and Anna accepted.

B. Anna stayed in Australia waiting for Eddy's arrival.

C. Anna bad a good time touring Sydney with Daddy.

D. Eddy met Anna in the airport waiting room by chance.

单项选择题