简述特许经营的缺点。
(1) 特许联营商必须遵循特许权授予者的要求，很少留下创新余地。
(2) 如果特许经营总部不擅长业务管理，会使加盟店受到牵连。
(3) 投资者加入特许经营组织，无形中已将自己的投资得失与整个特许系统连在了一起，形成命运共同体。
(4) 转让或转移加盟店较困难。
(5) 总部的政策对加盟店的利润有很大的影响。
(6) 由于合同期限而受制于总部。
暂无解析
用户群体大的电子商务模式是（）
收入;岁入 n. r_______________
微软公司推出的服务器是（）
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
MD-4散列算法中输入消息可以任意长度，但要进行分组，其分组的位数是（）
