放射免疫探测和放射免疫治疗
参考答案：
放射免疫探测和放射免疫治疗是利用放射性核素标记单克隆抗体进行的核医学显像和放射性核素治疗。
She didn’t ask her boyfriend to buy her a car. ______, she bought one for him.
A．That is
B．On the contrary
C．To be honest
D．Generally speaking
