【简答题】void loop() { a=Serial.read(); switch(a) { case 'A':Serial.println("apple");delay(1000);break; case 'B':Serial.println("banana");delay(1000);break; case 'C':Serial.println("cat");delay(1000);break; ca...
【单选题】void loop() { a=Serial.read(); switch(a) { case 'A':Serial.println("apple");delay(1000); case 'B':Serial.println("banana");delay(1000); case 'C':Serial.println("cat");delay(1000);break; case 'D':Seria...
D.
apple banana cat desk NO
【单选题】How to properly say sorry and thanks in case of the delay?
A.
We are sorry to inform you that the flight has been cancelled.
B.
It is pitiful that the goods are sold out.
C.
We apologize for any inconvenience caused and thank you for your patience and understanding.
D.
We are waiting for air traffic control clearance.
【单选题】How to inform the passenger of the delay in case of bad weather? ( )
A.
Please fasten your seat belt and refrain from smoking.
B.
Our flight will be delayed because of bad weather conditions.
C.
The flight has been cancelled.
D.
We will be taking off soon.
【判断题】人类原始居住形式经历了穴居、巢居、半穴居和地面建筑等多种类型。