相对而言，哪个基因突变导致的残毁性掌跖角化病的表型常伴耳聋（）。
A.连接蛋白26
B.兜甲蛋白
C.角蛋白1
D.角蛋白9
E.角蛋白14
参考答案：A
Tomorrow would be Christmas Day, and she had only $1.87 ____.[ ]
A. with which to buy a present to Jim
B. by which to buy Jim a present
C. with which she could buy a present for Jim
D. in which to buy Jim a present
划分甲状腺癌高危或低危的主要因素（）
A.肿瘤大小
B.有无远处转移
C.有无颈淋巴结转移
D.年龄
E.病理类型
