影响放大器工作点稳定的主要因素是()的变化。稳定工作点的措施是在电路中引入()。
参考答案:温度;负反馈
阅读下面的短文,将划线部分的句子译成汉语或英语。(共5个小题,每小题2分)
My name is Bob. I live in Toronto, Canada.小题1:I want a pen pal in China.小题2:I think China is a very interesting country. I’m 14 years old and my birthday is in November. 小题3:我会说英语. I also know a little French. I have a brother. Paul, and a sister. Sarah. They have pen pals in the United Kingdom and Australia.小题4:I like going to the movies with my friends and playing sports. 小题5:我最喜欢的科目是体育.It’s fun. But I don’t like math. It’s too difficult!
小女孩甲(8岁)与小男孩乙(12岁)放学后常结伴回家。一日,甲对乙讲听说我们回家途中的王家昨日买了一条狗,我们能否绕道回家?”乙答:“不要怕!被狗咬了我负责。”后甲和乙路经王家同时被狗咬伤住院。该案赔偿责任应如何承担?()
A.甲和乙明知有恶犬而不绕道,应自行承担责任
B.乙自行承担责任,乙的家长和王家共同赔偿甲的损失
C.王家承担全部赔偿责任
D.甲、乙和王家均有过错,共同分担责任