Chimpanzees are frequently used as stand-ins for human beings in experiments.

admin2011-02-26  21

问题 Chimpanzees are frequently used as stand-ins for human beings in experiments.

选项 A、partners
B、role-models
C、stand-bys
D、substitute

答案D

解析
转载请注明原文地址:https://kaotiyun.com/show/qtBO777K
0

最新回复(0)