S1: It's 14:20. S2: 14:20, OK. Q: What are they doing?
A.They are checking the engine telegraph.
B.They are checking the main engine
C.They are correcting the clock.
D.They are talking about the main engine
正确答案是C
S1: It's 14:20. S2: 14:20, OK. Q: What are they doing?
A.They are checking the engine telegraph.
B.They are checking the main engine
C.They are correcting the clock.
D.They are talking about the main engine
正确答案是C