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【多选题】
对于PPP链路建立过程的描述,下面说法错误的是()(多选)A.
Dead 阶段也称为物理层不可用阶段，当通信双方的两端检测到物理线路激活时，就会从 Dead 阶段迁移至 Establish 阶段，即建立阶段
B.
在 Establish 阶段，PPP 链路进行 LCP 参数协商。协商内容包括大接收单元 MRU、认证方式、魔术字等选项
C.
在 Network 阶段，PPP 链路进行 NCP 协商。通过 NCP 协商来选择和配置一个网络层协议，并进行网络参数协商
D.
NCP 协商成功后，PPP 链路将保持通信状态，并且进入 Terminate 阶段
E.
PPP 链路支持半和全两种模式
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【简答题】设计一个电压开关型丁类放大器，在2～30 MHz波段内向50Ω负载输送4 W功率。设VCC=36 V，VCE(sat)=1V，β=15。
【判断题】The primary purpose of the statement of cash flows is to report all major cash receipts (inflows) and cash payments (outflows) during a period.
A.
正确
B.
错误
【判断题】Cash Flow Statement is a record of the actual changes in cash compared to the income statement. It shows the firm’s cash inflows and outflows from operations as well as its investments and financing a...
A.
正确
B.
错误
【单选题】DS1302由VCC1或VCC2两者中的较大者供电,当VCC2>VCC1+0.2V时()。
A.
由VCC1和VCC2共同供电
B.
VCC1和VCC2都不供电
C.
由VCC1供电
D.
由VCC2供电
【单选题】Which of the following statements generally apply to the cash flows of a financing type project? I. nonconventional cash flows II. cash outflows exceed cash inflows prior to any time value adjustments...
A.
I and III only
B.
II and IV only
C.
I, II, and III only
D.
I, II, III, and IV
【判断题】Duration is a value and time weighted measure of maturity that considers the timing of all cash inflows from earning assets and all cash outflows associated with liabilities. It measures the average m...
A.
正确
B.
错误
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