The Yongle Bell(永乐大钟) in the Great Bell Temple is ________a man. [ ]

A. as three times tall as

B. three times taller as

C. three times as tall as

D. as three times like

关于茄科生物碱结构叙述正确的是（）

A.全部为氨基酮的酯类化合物

B.结构中有6，7-位氧桥，对中枢作用增强

C.结构中有6-位羟基，对中枢作用增强

D.莨菪酸α-位有羟基，对中枢作用增强

E.以上叙述都不正确