单项选择题
A.setMaxSpeed()B.setSpeed()C.runSpeed()D.setAcceleration()
A.从机选择线B.串行时钟线C.用于从机向主机发送数据D.用于主机向从机发送数据
A.Wire.begin()B.Wire.beginTransmission()C.Wire.endTransmission()D.Wire.requestFrom()