As for me, few excitements can beat ______of being admitted to my favorite university.

A．that

B．those

C．one

D．ones

“碧玉妆成一树高，万条垂下绿丝绦”。这句诗所说的“绿丝绦”是下列哪一结构直接发育成的（   ）

A．种子

B．芽

C．叶

D．花