小儿颅内肿瘤最常见的症状是（）

A.头痛

B.呕吐

C.复视和智力减退

D.精神行为异常

E.瘫痪

—What are people supposed to do when they meet in China?        

—People are supposed to           when they meet for the first time.[ ]

A. kiss

B. shake hands

C. bow

D. embrace