单项选择题
A. fill with B. fill in C. fill away D. fill up
They should take care of（锚链）（）to ensure that they are i...
单项选择题They should take care of（锚链）（）to ensure that they are in normal condition.
A. anchor chains B. anchor ball C. anchor gear D. anchor ring
They should take care of（锚）（）to ensure that they are in...
单项选择题They should take care of（锚）（）to ensure that they are in normal condition.
A. anchors B. anchor ball C. anchor gear D. anchor ring
Take down （）(G旗).A.Flag“H”B.Flag“G”C.Flag“Q”D.Flag
单项选择题Take down （）(G旗).
A.Flag“H” B.Flag“G” C.Flag“Q” D.Flag
