A.1/10 B.1/5 C.l/4 D.1/2
A.一刀、一叉、一勺 B.服務(wù)勺、叉各一把 C.公用勺、公用筷各一把 D.長(zhǎng)把湯勺、刀
A.30° B.45° C.60° D.90°