我国颁发的通航标准中规定的剩余水深为（）.

A .沙质河床0.1~0.3m，石质河床0.2~0.5m

B .沙质河床0.2~0.3m，石质河床0.2~0.5m

C .沙质河床0.1~0.3m，石质河床0.3~0.5m

D .沙质河床0.2~0.3m，石质河床0.3~0.5m