正确答案: D

面粉，蔗糖灼烧后都变成炭黑，说明它们是相同的物质

题目：下列说法不正确的是（ ）

解析：D

查看原题

举一反三的答案和解析：

[单选题]—How clean the bedroom is!—Yes,I am sure that someone it.

has cleaned

[单选题]Iforgettobringapen．Wouldyoulendme____?

one

[单选题]29． What does the Internet use to join the computers together?

The telephone

解析：29．D【解析】由第一段The Internet is a network. It uses the telephone to join millions of computers to- gether around the world.可知。