请从物流服务质量管理角度，阐述物流服务质量与成本之间的关系。
物流服务管理的目的是以适当的成本实现高质量的顾客服务。一般来讲，服务质量与成本是一种彼长此消的关系，两者间的关系是用于收益递减法则。它们之间的关系主要有以下四种类型
(1)在物流服务水准一定的情况下，降低物流成本
(2)要提高物流服务水准，不得不牺牲低水平的成本，听任其上升
(3)在物流成本一定的情况下，实现物流服务水准的提高)
(4)在降低物流成本的同时，实现较高的物流服务
暂无解析
The time has come for the company to __________ after years of rapid expansion.
被称为企业在竞争中克敌制胜的三大法宝是（）
多级安全策略属于（）
完型填空(本大题共 10 小题，每小题 1 分，共 10 分)从选项中选择一个最适合短文的选项，错选、多选或未选均无分。
Jogging is becoming one of the ___21___ growing activities in the nation. More people are starting jog each year. This, however, is a recent occurrence. It was not long ago __22____ joggers were rare sight. Some people thought that they looked quite strange. As __23____ people began jogging the sight of them became more common. There are many reasons ___24___ a person to take up jogging. First, it is a good form of exercise. This is __25____ it involves the use of many parts of the body. The exercising of the heart is of great benefit. This is one of the most important parts of the human body. If the heart does not get the needed exercise, serious problems can occur. ___26___ reason for jogging is for enjoyment. ___27___ being good for people, it can also be very much fun. Part of the fun of jogging comes from the opportunity it provides for meeting other people who enjoy it. One ___28___ that should be considered ___29___ a person takes up jogging as a form of exercise of enjoyment is that it is not for everyone. People should first check 30 their doctors and be prepared to find another form of exercise if jogging is not recommended.
21. A. fastest B. quickest C. most D. best
22. A. when B. while C. that D. as
23. A. many B. those C. more D. the
24. A. of B. with C. for D. in
25. A. that B. why C. reasonable D. because
26. A. A B. Other C. The other D. Another
27. A. Except B. Except for C. Besides D. Regardless of
28. A. matter B. event C. thing D. occurrences
29. A. of B. that C. what D. when
30. A. out B. over C. on D. with
Nothing can __________ being unkind to children.
