617.They experimented ________ the new medicine ______ animals.
A.on;to
B.by;on
C.with;on
D.with;to
618.The visiting Prime Minister hoped for greater trust between the two nations,more trade,more cultural exchanges.______ a genuine peace.
A.In detail
B.In total
C.In common
D.In short
617.答案是C;考查介词的用法。句意:他们用这种新药在动物身上做实验。Experiment on sb.with sth. 用…在某人身上做实验。
618.答案是D;in detail 详细地；in total 总计；in common 共同的；in short 简而言之。
