在滑行过程中机组一旦遇到不明确的地方，应当？When facing uncertain situation，the flight crew should？
A.停下来和ATC证实。stop and confirm with the ATC
B.继续按照给定的滑行路线滑行。keep taxing along the taxi route
C.停下来等待ATC的指令。stop and wait for ATC command
正确答案是1