下列甲状腺疾病哪一种不容易恶变
A．结节性甲状腺肿
B．甲状腺功能亢进症
C．青春期甲状腺肿
D．桥本病
E．甲状腺腺瘤
参考答案：C
取某一β-内酰胺类抗生素药物进行焰色试验，火焰显黄色。该药物应为
A．头孢噻吩钠B．头孢氨苄C．青霉素钾D．氨苄西林E．头孢拉定
Don't be worried about his safety. _____, he is an eighteen-year-old young man. [ ]
A. In all
B. After all
C. Above all
D. First of all
