項(xiàng)目經(jīng)理通過(guò)掙值計(jì)算得到績(jī)效指標(biāo)如下:SPI=1.05,CPI=0.86。這說(shuō)明?A.進(jìn)度提前,成本結(jié)余B.進(jìn)度落后,成本結(jié)余C.進(jìn)度提前,成本超支D.進(jìn)度落后,成本超支