题目内容

对供给手握式、移动式用电设备的末端回路或插座回路应不大于______s。

A. 0.1
B. 0.2
C. 0.4
D. 0.8

查看答案
更多问题

Nasreddin was a poor man, so he tried to grow 1 he could in his own garden, so that he would not have to buy so many in the market. One evening he heard a noise in his garden and looked out of the window. A white ox had got into the garden and 2 his vegetables. Nasreddin at once took his stick, ran out and chased the ox, but he was too old to catch it. When he got back to his garden, he found that the ox had ruined most of his precious vegetables. 3 , while he 4 in the street near his house, he saw a cart with two white oxen which looked very much like the one that 5 his vegetables. He was carrying his stick with him, 6 he at once began to beat the two oxen with it. As neither of them looked more like the ox that had eaten his vegetables than the other, he beat both of them equally hard. The owner of the ox and cart was drinking coffee in a 7 coffee-house. When he saw 8 Nasreddin was doing 9 his animals, he ran out and shouted," What are you doing What have those poor animals done to you for you to beat them like that" "You keep out this!" Nasreddin shouted back, "This is a matter between me and one of these two oxen. He knows very well 10 I am beating him!"

A. for
B. to
C. with
D. on

The Dragon Boat Festival is one of the t______(传统的)festivals in China. People usually eat rice dumplings Off that day.

When I was seven years old my morn was diagnosed(诊断) with cancer. The doctors told us my morn might be saved with surgery(手术). But it could also kill her. She chose to have it. The day before the surgery I was off school, and my morn planned the best day of my life, everything I loved at seven and everything that would put a smile on my face. The day began with her waking me up saying, "Kate, I have a surprise for you. Come and see." The surprise was a doll I had wanted for the longest time. Throughout the day, she told my everything that she thought I would need to know to grow up and be a good person; she told me to be the best I could be and that I would always make her proud. We had a picnic in the park, and it was so cold that we moved to the car. The day was filled with laughter. For the first time in a long time I could see she was really happy. I would never forget her smile, or the way her eyes shone as if we were the same age. It was the best day of my life, and I will never forget the conversations we shared. My mother managed to live through the surgery. Now when I look back, I realize that the best day of my life could be her last and this could be the last day I would remember with her, the last one we shared. I also understand how unselfish a mother is. Which of the following words best describes the writer’s mother

A. Hardworking.
B. Famous.
C. Rich.
D. Great.

If you often feel tired and the doctor can’t find anything wrong with you, you may be in a state of Subheahh(亚健康). Subhealth is a state between health and illness. Most of the subhealthy people are middle-aged ones who are usually stressed out because of work and family. And some of them are students who are having exams. If you are subhealthy, it is not difficult for you to become well soon. You should have good living habits. For example, you should get up early and go to bed early. And you should exercise regularly. Exercising can keep you healthy. As for meals, it is better to eat less salt and sugar. Vegetables, fruit and fish are important to your body. You should eat more of them. It is not good to eat too much at one meal, because it may cause unhealthy changes in the digestive tract(消化道). And at last, a balanced diet is very helpful in staying away from subheahh. What should you do if you are subheahhy

A. Relax and have good living habits.
B. Go to see the doctor and ask for some medicine.
C. Go to hospital in foreign countries.
D. Stay at home and not talk to others.

答案查题题库