单项选择题

A．They need new materials made from garbage.
B．The garbage makes their environment more and more dirty.
C．Their traditional ways of dealing with wastes are not efficient.
D．They find some materials useful.
<上一题 目录 下一题>
热门 试题

单项选择题
A．Borrow a book somewhere else.B．Take a book from the reading-room.C．Use a book of his own.D．Buy a book of his own.
A．Borrow a book somewhere else.
B．Take a book from the reading-room.
C．Use a book of his own.
D．Buy a book of his own.
填空题
strength
相关试题