下面那一项不属于ISP的分类

A、10M
B、20M
C、30M
D、40M

tiThe BRICS countries hve____ to be source of globl economic developmentnd essentil to genertions.turned out B．picked out C．put out D．tken outA．turned outB．picked outC．put outD．taken out

A.立井开拓
B.斜井开拓
C.平硐开拓
D.综合开拓