该患者最有可能的诊断是
A．腮腺混合瘤
B．腮腺黏液表皮样癌
C．腮腺腺样囊性癌
D．腮腺区结核
E．慢性阻塞性腮腺炎
参考答案：C
除叶酸外，与一碳单位转运有密切关系的维生素是（）。
A.维生素PP
B.生物素
C.泛酸
D.维生素B12
E.维生素B2
It was the hurricane ____was called Katrina _____destroyed the city of New Orleans.[ ]
A. what; that
B. what; which
C. which; that
D. that; which
