A.14 B.13 C.12 D.15
A.質(zhì)量策劃與質(zhì)量控制 B.質(zhì)量控制與質(zhì)量改進 C.質(zhì)量策劃與質(zhì)量改進 D.質(zhì)量策劃，質(zhì)量控制與質(zhì)量改進
A.r-1 B.m-1 C.rm-1 D.r(m-1)
