A.宜疏不宜密 B.宜密不宜疏 C.前疏后密 D.前密后疏
A.532 B.1024 C.1064 D.2048
A.細(xì)長(zhǎng) B.平直 C.長(zhǎng)深下淺 D.上粗下細(xì)