閲讀理解Thereareforty-sevendifferentkindsofkangaroos（袋鼠）.Th...
問題詳情：閲讀理解Thereareforty-sevendifferentkindsofkangaroos（袋鼠）.Thesmallestareaboutaquarterofameterlong;thebiggestaretallerthanaman. Kangarooshaveverylongstrongbacklegs.Theseareusedforjumping.Theyal...