Developing a low-carbon economy is__________global topic and the world needs

__________clean revolution with participation from everyone, decision makers to the children.

A．a；the

B．a；a

C．the；a

D．／：the

进口化工原料和化工产品，分拨调运后，不易按原发货批号抽取代表性样品，应在口岸报检。（）