电瓶充电要注意哪些事项?

题型:问答题 简答题

问题:

电瓶充电要注意哪些事项?

考点:中石化钻井一公司关键岗位人员安全考试录井工程测绘员录井工程测绘员题库
题型:问答题 简答题
铀的一种同位素,下列说法中正确的是(   )

A.相对原子质量为238

B.的原子质量为238

C.铀元素的质量为238

D.的原子核内有146个中子

题型:问答题 简答题

下列哪项使心室舒张末期充盈量减少( )

A. 心率一定程度减慢时

B.外周静脉压与心房压之差加大

C.心房压与心室压之差加大

D.心肌收缩加强

E.心房收缩能力加大

题型:问答题 简答题

阅读理解。

     There were smiling children all the way. Charily they knew at what time the train passed their homes and

they made it their business to stand along the railway, wave to complete strangers and cheer them up as they

rushed towards Penang. Often whole families stood outside their homes and waved and smiled as if those on

the trains were their favorite relatives. This is the simple village people of Malaysia. I was moved.

     I had always traveled to Malaysia by plane or car, so this was the first time I was on a train. I did not

particularly relish the long train journey and had brought along a dozen magazines to read and reread. I looked

about the train. There was not one familiar face. I sighed and sat down to read my Economics.

     It was not long before the train was across the Causeway and in Malaysia. Johore Baru was just another

city like Singapore, so I was tired of looking at the crowds of people as they hurried past. As we went beyond

the city, I watched the straight rows of rubber trees and miles and miles of green. Then the first village came

into sight, Immediately I came alive; I decided to wave hack.

     From then on my journey became interesting. I threw my magazines into the waste basket and decided to

join in Malaysian life. Then everything came alive. The mountains seemed to speak to me. Even the trees were

smiling. I stared at everything as if I was looking at it for the first time.

     The day passed fast and I even forgot to have my lunch until I felt hungry. I looked at my watch and was

surprised that it was 3:00 pm. Soon the train pulled up at Butterworth. I looked at the people all around me.

They all looked beautiful. When my uncle arrived with a smile, I threw my arms around him to give him a

warm hug (拥抱). I had never done this before. He seemed surprised and then his weather-beaten face warmed

up with a huge smile. We walked arm in arm to his car.

     I looked forward to the return journey.

1. The author expected the train trip to be _____. [ ]

A. adventurous

B. pleasant

C. exciting

D. dull

2. What did the author remember most fondly of her train trip? [ ]

A. The friendly country people.

B. The mountains along the way.

C. The crowds of people in the streets.

D. The simple lunch served on the train.

3. What did the author remember most fondly of her train trip? [ ]

A. The friendly country people.

B. The mountains along the way.

C. The crowds of people in the streets.

D. The simple lunch served on the train.

4. Where was the writer going? [ ]

A. Johore Baru.

B. The Causeway.

C. Butterworth.

D. Singapore.

5. What can we learn from the story? [ ]

A. Comfort in traveling by train.

B. Pleasure of living in the country.

C. Reading gives people delight.

D. Smiles brighten people up.

题型:问答题 简答题

坚持依法治国首先要坚持()。

A.依宪治国

B.依法治国

C.依规治国

D.依章治国

题型:问答题 简答题

已知裂解产品分布为干气7W%,汽油30W%,柴油17W%,液化气40W%,生焦6W%,试计算单程转化率。

更多题库