船舶载运危险货物,必须持有()颁发的危险货物适装证书。
A.安监部门
B.海事机构
C.船检机构
参考答案:C
— Excuse me, are you Amy, from Class 2, Grade 1?
— Sorry, I'm not _____ Amy from Class 2, Grade 1 but from Class 1, Grade 2.
There are two Amys in my school. [ ]
A. a
B. an
C. /
D. the
下述哪项符合假性球麻痹()
A.咽反射消失
B.下颌反射亢进
C.舌肌萎缩
D.构音障碍
E.吞咽困难