问题
选择题
汽油机的一个工作循环包括四个冲程，其中将机械能转化为内能的是[ ]
A、吸气冲程
B、压缩冲程
C、做功冲程
D、排气冲程
答案
答案：B
搜题请搜索小程序“爱下问搜题”
汽油机的一个工作循环包括四个冲程，其中将机械能转化为内能的是[ ]
A、吸气冲程
B、压缩冲程
C、做功冲程
D、排气冲程
答案：B
阅读下列短文，根据短文内容完成文后表格中所缺信息，每空一词（共10题，每小题1 分，计10分） There are many things you can do to improve your memory. Among them are many kinds of useful ways are well as taking special care of your health. It is important that you make yourself excited to make your memory more active. You can do this by doing some new activities and by changing your daily habits. Learning a new skill helps your brain（大脑）to develop. When trying to remember something, you should pay special attention to the most important things about it .Do not allow other thoughts to enter your mind because this will reduce your chances of making right memories. An excellent way to help memory is to connect information with pictures. Try to see the pictures in your mind. Taking notes and keeping a diary will also be helpful. Healthy food and plenty of vitamins are necessary for your memory to work well. Drinking a lot of water also helps keep your memory. You must allow your brain to have enough sleep and rest. When you are asleep, your brain stores memory. Not enough sleep can cause problems with storing information. And being tired will also stop you from being able to think clearly and well. In order to keep your mind on your work, you must be free from worry. Generally keeping fit and normal health checks are both important as well-not just for improving your memory.
|
The Catherine family enjoyed the good things in life as much as anyone else. They ___36___games, books, music, toys, good food and good times. But sometimes ___37___seemed, especially to Mrs. Catherine who ___38___the house, that they had too much stuff in the closets, in the drawers, in the basement, and almost ___39___. It made Mrs. Catherine a little ___40___. One day, at breakfast, Mrs. Catherine made a（n） ___41___. “This family,”she said firmly, “has too much stuff. It's time to get ___42___of some of them. ”The three children all ___43___with this idea and helped pile used things and unused things they were never going to use into the car. Their first ___44___was Home for the Aged where the older went to live. Nurses and doctors looked after them, but sometimes the older got a little lonely and ___45___. They liked visitors and things to do. When the family arrived at Home for the Aged, they ___46___out their games and puzzles to the older and then sat down to play games and do puzzles with them. They had a ___47___time and they were sorry when it was time to leave. Their next stop was the Young Cubs Hospital. The Catherine family dropped ___48___their load of used toys which were very welcome. The hospital workers said the toys would be given out at the hospital ___49___party. Their last stop was People Who Care store. This was a store that sold things to ___50___money for those who needed warm clothes and good food. The Catherine family lugged all their old clothes and furniture into the store. After that, the Catherine family ___51___home with warm feelings about what they had done. ___52___they drove along, they passed the lighted ___53___of supermarkets which were beautifully decorated for Christmas. There was window after window of the very latest things, but they were so filled with special thoughts about helping others that they ___54___noticed the wonderful things in the windows except maybe out of the ___55___of their eyes.
|