免疫治疗中，具有同时特异性结合Tc和肿瘤细胞的抗体是（）
A.单链抗体
B.人源化抗体
C.双价抗体
D.嵌和抗体
E.双特异性抗体
参考答案：E
The Foreign Minister said, “____ our hope that the two sides will work towards peace.”
A．This is
B．There is
C．It is
D．That is
什么是脱盐水？
