单选题_______we know  in a&nbs

问题补充：

单选题_______ weknow,inachemicalchange,energycannotbecreated, ________.A.Which, nor can it be destroyedB.As, neither it can be destroyedC.As, neither is it able to be destroyedD.What, nor is destroyed

答案：

C解析as we know 是常用句型，意为从所周知；neither是否定副词，放在句首，句子要用倒装。