- 搜标题
- 搜题干
- 搜选项
单项选择题
Which one is the correct answer?
Which one is the correct answer?
A.
Yes, madam. How can I help you?
B.
Oh, yes, please.
C.
OK. What kind of account, please?
D.
You can do whatever you like.
,其中
是非谐振时的电压增益;
是谐振时的电压增益,下列描述正确的是()。
,
。
在谐振频率
附近时,
。
。
