The writer thinks that _____________________.
A. newspapers should only publish news online
B. daily newspapers may not survive
C. one day she will also stop getting a weekend newspaper
D. weekend papers will survive
查看答案
电路的频率特性，是指对于不同频率的输入信号，其放大倍数的变化情况。高频时放大倍数下降，主要是因为 的影响；低频时放大倍数下降，主要是因为 的影响。
当输入信号频率为fl或fh时，放大倍数的幅值下降为中频时的 ，或者是下降了 dB。此时与中频时相比，放大倍数的附加相移约为 。
Why should we hold a business plan meeting?
A. To seek others’ opinions and make the former one better.
B. To conduct a marketing research.
C. To meet the related persons.
D. To discuss the financial arrangements.
What is suggested when organizing a formal business plan meeting?
A. Casual dress.
B. Dinner clothes.
C. Office dress.
D. Informal dress.
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