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问题 解答题

把1、2、3、4、5这五个数字组成无重复数字的五位数，并把它们按由小到大的顺序排列成一个数列．

（1）该数列共有多少项？

（2）这个数列的第96项是多少？

答案

（1）由题意，该数列共有

A55
=120项；

（2）1开头的五位数有

A44
=24；2开头的五位数有
A44
=24；3开头的五位数有
A44
=24；4开头的五位数有
A44
=24；

所以1、2、3、4开头的五位数共有96个

所以第96项是4开头最大的数，即45321．

填空题


Questions 16-22
· Look at the notes about an enterprise.
· Some information is missing.
· You will hear part of a presentation by the International Manager of the company.
· For each question, fill in the missing information in the numbered space, using one or two words.
· You will hear the presentation twice.

Honeybee Foods Corporation
Honeybee started originally as (16) an ______ parlor
The company’s name came from(17) TTC’ s vision of employees working
like ______
Honeybee’s philosophy (18) “______”
Up to 1985, Honeybee had(19) ______ chains in the Philippines
In its international expansion, the successful chains were in (20) ______
The chain store of Honeybee in Singapore was(21) ______
In the future Honeybee should (22) ______ step by step.
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判断题

参考书的价值在于通过对其的阅读，拓宽相关学科的了解。
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