题目内容

Task 1. Understanding a Movie Dialog and fill in the blanks according to what you hear.[音频]Secretary: Natalie's on Line One.Adam: What's up, honey? You look 1)__________.Natalie: Oh, Adam, I just talked to the vet and made them… they had to put Oliver to sleep.Adam: What? He wan't even that 2)______________.Natalie: Oh, I know. But apparently he had some kind of, I don't know… highly infectiouscanine virus or something. And , and they had to put him down. It's the 3) ______________.Adam: Oliver was licking Clara's face this morning.Natalie: Don't worry, because I asked the same thing, and the virus is 4) _______ to humans. Soum… So she's fine.Adam: This is going to 5) _____ her heart, and you know that.Natalie: No, it won't . I want you to go down to RePet… and get Oliver 6) ________.Adam: I'm not going to have some freak of science sleep in my daughter's bed.Natalie: Oh, Adam, for heaven's sake. It's not dangerous.Adam: No, yes, no, no. Oliver can live on in our 7)_____.Natalie: She's only eight. She won't understand that, honey.Adam: Look, it's the 8)______ process of life. You're born, you live and you die. She has to learnabout it some day.Natalie: Yeah, but she doesn't have to learn about it on your 9)____ . It's hard …Adam: I really 10)____ that, honey.Natalie: Will you do it?Adam: No.Natalie: Thank you, darling. And Clara thanks you too. I love you. Bye, bye.Adam: But I won't do it. No, no, no, listen. Natalie, I just won't…

查看答案
更多问题

单相半波整流电路中,阻性负载,晶闸管的控制角是60°,其导通角是____。

A. 0°
B. 60°
C. 120°
D. 180°

单相半波整流电路中,在交流电的一个周期内,晶闸管正、负半周分别处于____状态。

A. 正半周导通,负半周截止
B. 正半周截止,负半周导通
C. 正半周导通,负半周导通
D. 正半周截止,负半周截止

单相半波整流电路中,允许通过晶闸管的电流平均值随导通角的减小而____。

A. 增加
B. 减小
C. 不变
D. 变化,但大小不确定

半波整流时,晶闸管实际承受的反向电压的最大值,出现在晶闸管____。

A. 截止时
B. 导通时
C. 由截止转导通时
D. 由导通转截止时

答案查题题库