问题补充：
With science and technology advancing, plentiful kinds of medicines are being developed to us of our pain caused by diseaese.
A. cure
B. remove
C. relieve
D. reduce
答案：
A. cure
B. remove
(答案→)C. relieve
D. reduce
解析：relieve意思为 “缓和,减轻;解除”, 结构为 relieve sb of sth 减轻某人的痛苦、负担等。cure sb of sth 治疗某人的疾病等，不能说治疗痛苦；remove sb from sth把……免职;撤去;remove sth from sth从……去掉;消除;reduce the pain减少痛苦。
