A:As long a
B:While
C:Where
D:In spite of
地球上最大的生态系统是( )
-- Look! Someone ____ the icebox back to the corner.
-- Well, it wasn't me. I didn't do it.
正常情况下,当人体局部组织活动增加时,代谢产物增加,此时该组织中的( )