What kind of fuse is usually fixed in a three-pin plug

从“Waiting for PIN”与“Validating PIN”之间的转换需要经过（ABCD）事件 A: PIN Entered B: Validate PIN C: Invalid PIN D: Invalid PIN Prompte

I read the novel three times, yet I couldn't ________ what exactly the author was trying to say. A: track down B: pin down C: drive at D: arrive at

PIN码的管理状态不包括：（） A: PIN输入状态 B: PIN输入成功状态 C: PIN未输入或输入错误状态 D: PIN锁住状态

analogRead(pin)参数pin的范围（）。

A technician is installing a printer that uses a parallel cable to connect to a computer.  Which of the following pin configurations might the technician encounter？ （） A: 9 pin D-type B: 36 pin Centronics C: 25 pin Centronics D: 13 pin D-type E: 25 pin D-type

Arduino怎么将引脚设置为输出。 A: pinMode(pin,OUTPUT) B: pinMode(pin,INPUT) C: digitalWrite(pin,HIGH) D: analogWrite(pin,num)

Arduino怎么将引脚设置为输入。 A: pinMode(pin,OUTPUT) B: pinMode(pin,INPUT) C: digitalWrite(pin,HIGH) D: analogWrite(pin,num)

Arduino怎么将引脚设置为低电平。 A: digitalWrite(pin,HIGH) B: pinMode(pin,INPUT) C: digitalWrite(pin,LOW) D: analogWrite(pin,num)

Arduino怎么将引脚设置为高电平。 A: digitalWrite(pin,HIGH) B: pinMode(pin,INPUT) C: digitalWrite(pin,LOW) D: analogWrite(pin,num)