A:
B:
C:
D:
①四川 ②贵州 ③青海 ④甘肃 ⑤海南 ⑥上海
—That's good news for us. We have too much work to do after school.
“螳螂捕蝉,黄雀在后”揭示的动物之间的( )
下列有关水的说法错误的是()