We are using up our natural resources too quickly and at the same time we are ______our environment with dangerous chemicals.

A． protecting

B． saving

C． polluting

D． fighting

[单选题]For many years, people have tended to think of natural resources as stacks

[单选题]For many years, people have tended to think of natural resources as stacks

[单选题]For many years, people have tended to think of natural resources as stacks

[单选题]For many years, people have tended to think of natural resources as stacks

[单选题]For many years, people have tended to think of natural resources as stacks

Pick things up Picking things up is not easy.If we drop our pencil on the flo

________ twice, the postman refused to deliver our letters unless we chained our

[单选题]These natural resources will be______sooner or later if the present rate of exploitation continues.A．depletedB．deployedC．inclinedD．mingled

[单选题]The country is [abundant]in natural resources.A.richB.colorfulC.mysteriousD

[单选题]The country is [abundant]in natural resources.A.richB.colorfulC.mysteriousD