A.目前市场机会与未来市场机会B.行业市场机会与边缘市场机会C.现有市场机会和潜在市场机会D.全面市场机会与局部市场机会
A.digitalWrite(2)B.digitalRead(2)C.analogWrite(2)D.analogRead(2,LOW)
A.#define A 10B.int a =10C.float aD.boolean i