A.15d B.10d C.8d D.5d
A.基礎(chǔ)寬 B.基礎(chǔ)長(zhǎng) C.基礎(chǔ)厚 D.基礎(chǔ)重
A.邊長(zhǎng)*0.5 B.邊長(zhǎng)*0.7 C.邊長(zhǎng)*0.9 D.邊長(zhǎng)*1.2