A: 正确
B: 错误
举一反三
- The counting mode is to count the external pulse of P0 port
- The timer T1 of 8051 single chip microcomputer is used as counting mode, and the counting pulse is. A: Input from T1 (p3.5) B: Provided by internal clock frequency C: Input from t0 (p3.4) D: Counting by external counting pulse
- Both timer T0 and T1 can only work in 16-bit counting mode A: 正确 B: 错误
- Under the working mode 1, both counting and timing can be carried out. A: 正确 B: 错误
- 华为交换机中把当前端口设置为access模式，正确的命令是（ ）。 A: [Huawei-Ethernet0/0/1]port mode access B: [Huawei-Ethernet0/0/1]port link-type access C: [Huawei-Ethernet0/0/1]switchport link-type access D: [Huawei-Ethernet0/0/1]switchport mode access
内容
- 0
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
- 1
The CD40110 is currently in the subtraction count state, but the digital tube occasionally adds a few times. What is the most possible reason? A: The input pulse is connected to the CT B: The addition count pin is not connected to a fixed level C: The subtraction counting pin is not connected D: The voltage is unstable
- 2
在华为交换机中设置接口为静态访问模式的命令是（ ）。 A: [SW1-G0/0/1] switchport mode access B: switchport mode trunk C: port link-type access D: port link-type trunk
- 3
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
- 4
Both timer T0 and T1 can only work in 16-bit counting mode