I knew nothing of the motives behind his recent move, and I don''t know either the person to put him up to the action.

A．nor did I know ... who

B．not did I know ... that

C．nor do I know ... that

D．either did I know ... who

物料储备总量是指（）三者之和。

A.经常储备量

B.保险储备量

C.季节储备量

D.周转储备量