半月征不包括()
A.龛影位于腔外
B.龛影大而浅,半月形
C.龛影周围不规则环堤
D.恶性肿瘤的征象
E.指压征
参考答案:A
As a new-comer of the class, Sarah hopes to become a friend of___ shares her interests and has common outlooks.
A.whoever
B.whomever
C.no matter who
D.anyone
类目表是采用等级的形式表达()的。