第一、二鳃弓未正常融合可致（）
A.甲状舌管囊肿及瘘
B.第一鳃裂囊肿及瘘
C.第二鳃裂囊肿及瘘
D.第三鳃裂囊肿及瘘
E.气管颈瘘
参考答案：B
______ of that country _______ by snow.
A．Second thirds; is covered
B．Two thirds; is covered
C．Two thirds; are covered
D．Two third; covers
归脾汤的功用是( )
A．健脾益气，宁心安神B．健脾养心，益气摄血C．滋阴清热，补心安神D．健脾升阳，渗湿止泻E．益气补血，健脾养心
