阿摩線上測驗
9. The unmanned machinery test will start ______ five minutes, make sure to ask the authorized persons away _____ engine control room.
(A) on ; in
(B) in ; from
(C) at ; off
(D) about ; out
答案：登入後查看
統計： A(196), B(708), C(78), D(56), E(0) #1899637
統計： A(196), B(708), C(78), D(56), E(0) #1899637
