________, the northerners are keen on dumplings while the southerners are fond of rice.[ ]

A. Generally speaking  

B. General speaking

C. Speaking general  

D. Speaking generally

蓝光疗法可能出现的不良反应有（）

A.轻度腹泻

B.呕吐

C.发热

D.一过性皮疹

E.排绿色稀便