可借以鉴别桥本甲状腺炎与甲状腺癌的是()。
A.甲状腺的大小
B.甲状腺质地
C.甲状腺是否为结节状
D.甲状腺是否有血管杂音
E.是否伴有颈总动脉搏动
参考答案:E
55°36′的余角是 ,补角是 .
The foreign guests said that they were very happy ()the great changes which had taken place in the village.
A.to
B.for
C.about
D.by