People often have the belief ________a healthy environment and development cannot be possible at the

same time, but this does not have to be true.[ ]

A. that            

B. which              

C. where            

D. what

按照我国海关法的规定，进口货物的收货人、出口货物的发货人、进出境物品的所有人是关税的纳税义务人。 ( )