A:①④⑤
B:①②③
C:③④⑤
D:②③⑤
We live on the e____and it's our only home.We should try our best to protect it from the pollution.
古代罗马博物学家普林尼在《自然史》中写道:“中国或称赛里斯,在希腊古语里意思是丝。”你从此材料中获得的信息不包括