" Fire -fighting and lifeboat drills shall be conducted in manner that ________.①minimizes the disturbance of rest periods ② will induce fatigue ③ is conducted as if there were actual emergency
A.①②
B.①③
C.②③
D.①②③
正确答案是B
" Fire -fighting and lifeboat drills shall be conducted in manner that ________.①minimizes the disturbance of rest periods ② will induce fatigue ③ is conducted as if there were actual emergency
A.①②
B.①③
C.②③
D.①②③
正确答案是B