Question

六年级寒假园地第32页(你知道吗?)

Answer 1

题是这个：The first radios begin in the 1920s.At that time the sound was very poor.so people had to listen on headphones.
Teievisions began in the 1930s.It was black and white.In the 1960s,the TV programmes began to have colour.
Do you know when computers began?
答不出来别说话。

Answer 2

The earliest computer was invented in the 1940s in the USA. It's called ENIAC. Then computers were widely used in the 1980s.

Answer 3

我呸！想要答案还不发题！做不出来活该！

Answer 4

老老实实拿题目出来

追问

自己看。

追答

为了你这个东西我们要去买一本一模一样的作业你觉得值得吗？如果想要答案就老老实实发题来

Answer 5

题目有么？

追问

自己查。

追答

......这我怎么查，要不你发张照片