关于Doyouknowwhydifferen的百科

• 根据短文内容及首字母提示，填写所缺单词，使短文意思完整。每空一词Doyouknowwhydifferentan...

• 问题详情：根据短文内容及首字母提示，填写所缺单词，使短文意思完整。每空一词Doyouknowwhydifferentanimalsorpests(害虫)havetheir(1)s________colours?Coloursinthemseemtobemainlyusedtoprotectthemselves.Somebirdslikeeatinglocusts(蝗虫)，butbirdscannoteasilycatchthem...
• 2019-12-0317652