开放式基金在证券交易所挂牌交易。( )
参考答案：错
Visual Basic的对象是______和控件的总称。
The objectives of（）are to ensure safety at sea, prevention of human injury or loss of life, and avoidance of damage to the environment,in particular to the marine environment and to property.
A.COLREG
B.IMDG
C.ISM
D.SOLAS
