A.雙代號網(wǎng)絡圖 B.單代號網(wǎng)絡圖 C.雙代號時標網(wǎng)絡圖 D.單代號搭接網(wǎng)絡圖
A.27 B.27.2 C.27.3 D.27.5
A.1943 B.16322 C.16344 D.21798