[摘要]:【十个字母的单词】作业帮technologybackgroundchairwomandifficultydiscussiongovernmentmotorcycletoothpastetelevisionunderstandsuggestionlabo...
[摘要]:人的手和马的前肢是同源器官吗_作业帮这是错误的,修正的话是:人的上肢和马的前肢是同源器官.所谓同源器官,是指外形、功能不同,但具共同起源、相似结...
[摘要]:随便三句名言,但必须是(中英对照)的_作业帮1 Practice makes perfect 熟能生巧2 God helps those who help themselves 自助者天助之3 Easier said t...