阅读理解Thereareforty-sevendifferentkindsofkangaroos（袋鼠）.Th...
问题详情：阅读理解Thereareforty-sevendifferentkindsofkangaroos（袋鼠）.Thesmallestareaboutaquarterofameterlong;thebiggestaretallerthanaman. Kangarooshaveverylongstrongbacklegs.Theseareusedforjumping.Theyal...