Question

阅读理解：

　　Long, long ago there was no zero. To write the number sixty-three people wrote 63. To write six hundred and three, people wrote 6 3. The space between six and three was there to mean“not any”tens. Sometimes people did not remember the space. It was hard to see and read.

　　Later people used a dot to hold the space. Six hundred and three looked like this 6. 3. But the dot was hard to see. So people put a circle around it like this 6⊙3. Then people could see the dot. They remembered the space. At last, only the circle around the dot was used. It was like a zero. This is one story of how the zero came to be used.

Now zero has many important uses. Zero tells how many. Can you tell some other ways of using zero?

The story tells us ________.

[　　]

A．how zero came to be used

B．how to write zero

C．what's the use of zero

D．that zero means a dot, a circle or space

Answer 1

答案：A
解析：

文章第一自然段讲，古代没有零的时代，人们如何表达含有零的数字；第二自然段讲述人们如何克服过去的不足，“put a circle around it like this 6⊙3”，最后演绎到今天的0的表达法。因此全文讲述了0的发展及应用。所以答案为A．