【判断题】乙类功率放大电路的交越失真是由三极管输入特性的非线性引起的。
【单选题】For trips outside their local suburb, they had to use different transportation modes including bu s , taxi and sometimes a rental car .
【简答题】英译汉: In the local business community he is regarded as a substantial trader with a clean record.
【单选题】俗语“往**脸上贴金”,这其中的金指的是