皮皮学，免费搜题
登录
搜题
【单选题】
采用具有谐振特性的元件和网络作为负载的放大器称为谐振放大器,它不但具有放大作用,而且还具有( )的作用。A.
整流或滤波
B.
选频或滤波
C.
选频或变频
D.
检波或滤波
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【判断题】Firms that practice product differentiation gain competitive advantage through the way they design their channel's coverage, expertise, and performance.
A.
正确
B.
错误
【单选题】Some firms have cut workers’pay below the level set in their contract, a _______ that is illegal in Germany.
A.
habit
B.
tradition
C.
practice
D.
training
【单选题】Ad man Rosser Reeves believes that firms should develop a USP for each brand and stick to it. For what does USP stand?
A.
unique selling proposition
B.
universally strategic practice
C.
unique services practice
D.
unique sales pitch
E.
unique selling product
【简答题】相同情况下,AM、DSB-SC、SSB、VSB、FM这5种调制系统中,有效性最好的是_______,有效性最差的是_______,可靠性最好的是______。
【简答题】Wall Street firms have traditionally compensated their traders with a share of the trading profits that they generated. How might this practice have affected traders’ willingness to assume risk? What ...
【单选题】The MM theory with taxes implies that firms should issue maximum debt. In practice, this does not occur because
A.
debt is more risky than equity
B.
bankruptcy is a disadvantage to debt.
C.
the weighted average cost of capital is inversely related to the debt-equity ratio.
D.
the weighted average cost of capital is directly related to the debt-equity ratio.
相关题目：