一本数学课外书的宽与长的比恰好是黄金比,如果书的长是20cm,则这本书的宽约为[ ]
A、7.6cm
B、12.4cm
C、32.3cm
D、10.4cm
答案:B
We were all surprised when he made it clear that he ______ office soon.
A.leaves
B.left
C.would leave
D.had left
菊花花刀适用于加工肉薄的带皮鱼、鸭肫、鹅肫等原料。( )