—I feel very thirsty and hungry after a long walk.
—Would you like some ________ and ________?
A:apple juice;sandwich
B:apples juice;sandwiches
C:apple juice;sandwiches
读“黄河水系图”,回答问题.
已知反比例函数y=kx的图象经过点(a,b),则它的图象也一定经过( )
①火焰温度最高处是外焰 ②烛燃烧能生成二氧化碳 ③燃烧能发光、发热 ④燃烧能生成水.