【单选题】The capture theory states that:
A.
certain industries must be captured by government regulators to promote economic efficiency.
B.
some industries actively seek regulation to limit competition and obtain government subsidies.
C.
monopoly profits can be captured by society through government regulation.
D.
natural monopolists tend to capture the entire market.
【判断题】危险货物限使用棚车装运(铁路危险货物品名表“特殊规定”栏有特殊规定的除外)。
【多选题】以下关于远期和期货的说法正确的有( )。
【单选题】危险货物限使用()装运(铁路危险货物品名表“特殊规定”栏有特殊规定的除外)。
【单选题】__________vastness of the Grand Canyon, it is difficult to capture it in a single photograph.