【简答题】Ex. Fill in the blanks with the words and the expressions given below. Change the forms where necessary. absence accumulate declare forbid mourn be blessed with ...
【简答题】阅读理解. Since the beginning of human evolution(进化), men have migrated(迁移)across continents in search of food, shelter, safety, and comfortable weather. People still move for these reasons, but new reaso...
【简答题】Certain animals and plants develop characteristics that help them cope with their environment better than others of their kind. This natural biological process is called adaptation. Among the superior...
【简答题】Certain animals and plants develop characteristics that help them cope with their environment better than others of their kind. This natural biological process is called adaptation. Among the superior...