变压器耦合推挽功率放大电路中，输入变压器不仅有级间耦合作用，还有把输入信号变成两个等 发布时间：2018-11-26 23:53 │ 来源：www.tikuol.com 题型：判断题 问题： 变压器耦合推挽功率放大电路中，输入变压器不仅有级间耦合作用，还有把输入信号变成两个等量的反向信号和级间阻抗匹配作用。（）
题型：判断题 完形填空。 Once a family of three (husband, wife, and their young daughter) were so poor that they had nothing to eat. Being desperate (绝望的), the husband went out into the forest to look for food but found 1 . Just thenhe found a man suddenly 2 before him. The man asked him, " 13 do you have such a look of desperation?" The husband said, "I've no food for my daughter." The man said, "Bring your daughter to me, and I'll 14 her."Realizing the strange man must be God, the husband was so relieved that he 15 ran for his home to 16 his daughter. Picking his daughter up, the father walked back as fast as possible to the meeting area, where the man was 17 for them patiently. The man looked lovingly at the girl, saying to the father, "I'll take her with me to a place where she'll not go 18 any more." Having taken their poverty (贫穷) into 19 , the father agreed. Then the man took her away. Several 20 later, the young girl became a young woman. One day the man had to be away for a period and asked her to keep the key to a box. The young woman 21 the task. Before the man handed her the key, he warned her not to open the box. 22 , as she was ensuring the safety of the 23 one day, she was so 24 about its contents that she unlocked it. She found nothing inside it, but she had 25 the man who saved her from starvation. She locked the box again. 26 turning around, she found the man standing behind her, who was looking at her with such a look of grief and 27 that it broke her heart. She felt ashamed and cried. Seeing this, the man decided not to punish her.Then he placed a hand under her chin (下巴) to 28 her face. As the young woman 29 the man's eyes, shesaw 30 , and her heart began to mend. From the story, we should learn to be kind and forgive others. ( )1. A. nothing ( )2. A. disappear ( )3. A. How ( )4. A. feed ( )5. A. suddenly ( )6. A. help ( )7. A. looking ( )8. A. hungry ( )9. A. use ( )10. A. centuries ( )11. A. enjoyed ( )12. A. Besides ( )13. A. key ( )14. A. curious ( )15. A. followed ( )16. A. With ( )17. A. love ( )18. A. lift ( )19. A. watched over ( )20. A. peace B. everything B. laugh B. Why B. comfort B. hesitantly B. see B. waiting B. sad B. practice B. years B. refused B. However B. house B. excited B. injured B. On B. hate B. lower B. looked into B. anger C. something C. run C. When C. protect C. immediately C. save C. cooking C. mad C. consideration C. seasons C. eompleted C. Therefore C. box C. anxious C. disobeyed C. In C. happiness C. beat C. glanced at C. disappointment D. anything D. stand D. Where D. educate D. slowly D. fetch D. praying D. bad D. effect D. months D. accepted D. Then D. man D. worried D. cheated D. At D. sorrow D. touch D. searched for D. forgiveness 查看答案