The Three-Tier model of the database system is（）. A: Up mode, mode, Down mode B: Front mode, mode, Rear mode C: External mode, mode, internal mode D: Large mode, Medium mode, Small mode

subtractive color mode refers to A: CMYK mode B: RGB mode C: HSB mode D: LAB mode

Additive color mode refers to A: RGB mode B: HSB mode C: CMYK mode D: LAB mode

What is the most common mode for a firewall？（） A:  routed mode B:  context mode C:  bridged mode D:  transparent mode E:  full security mode

P mode display A: Program exposure mode B: Aperture priority mode C: Shutter priority mode D: Manual mode

GPRS/EDGE网络有3种运作模式：MODEⅠ、MODEⅡ和MODEⅢ。以下说法正确的是（） A: MODEⅠ可以选择是否配置MPDCH，MODEⅡ不能配置MPDCH，MODEⅢ一定要配置MPDCH； B: MODEⅠ必须配置MPDCH；MODEⅡ可以选择是否配置MPDCH，MODEⅢ不能配置MPDCH； C: MODEⅠ不能配置MPDCH；MODEⅡ必须配置MPDCH；MODEⅢ可以选择是否配置MPDCH； D: 无论何种MODE，均可以不配置FPDCH；

For conventional configuration aircraft, which of the following modes are lateral-directional modes A: Roll-subsidence mode B: Dutch roll mode C: Spiral mode D: Short-period mode E: Phugoid mode

The alarm management mode of DVR (non-manual alarm) includes ( ) A: External contact alarm mode B: External API alarm mode C: VMD alarm mode D: Timing alarm mode

定时器的定时时间与下列哪个参数有关？（ ） A: TIM_Prescaler B: TIM_Channel C: TIM_CounterMode D: USART_Mode

下列哪个参数与串行通信的波特率有关。（ ） A: USART_WordLength B: USART_StopBits C: USART_BaudRate D: USART_Mode