调节力等于( )

A．调节幅度的倒数

B．调节远点的倒数

C．调节范围的倒数

D．屈光度的倒数

E．调节近点的倒数

_______it is not far from my home to school, _____I usually ride my bike to school.

A．Because, so

B．Because , /

C．/, because

D．So ,because