有令即行,有禁即止的意思

Human beings are a part of the environment; therefore we should protect the environment. To achieve this goal, we should start to save our energy. Such as, turn off the light, throw rubbish into rubbish bin, and recycle things. But before that, the most important thing to do is to increase people’s ideas about save and protect our environment. Nowadays, people do things to destroy the environment is because they can't release the huge damages caused by destroy environment. Infect, there are some events occurring in our lives. Such as, the global warming, flood and earthquake. They are not appearing very often yet. But it is already the time to protect our environment.
人类是环境的一部分，所以我们应该保护环境。为了实现这个目标，我们要开始节约能量，像关灯，把垃圾扔进垃圾桶和回收再利用。但是，在这之前，最重要的一件事就是要提高人们保护环境的意识。现如今，人们破坏环境是因为还不了解环境被破坏之后的严重危害。例如，全球变暖，洪水和地震。虽然现在这些事情发生的不是很频繁，但是保护环境我们要从现在做起。

出处 《管子·立政》：“令则行,禁则止,宪之所及,俗之所破.如百体之从心,政之所期也.”
释义 下令行动就立即行动,下令停止就立即停止.形容法令严正,执行认真.

上海世博会的主题是：城市,让生活更美好
世博会会徽是中国2010年上海世界博览会象征.
海宝,以汉字“人”字为核心创意,配以代表生命和活力的海蓝色.
和平与发展、互促与共进.
the theme of large world shanghai world's fair is:the city,lets the finer world's fair emblem living be chinese shanghai world's fair in 2010 symbol.sea treasure ,innovative idea centering on chinese character "person" character ,the sea blue being qualified for to represent life and the vigour.peace and development ,each other urge and advance together.

算一个啊,因为那个性染色体算一对,比如人,是二十三对,46条,果蝇有4对共8条染色体,这4对染色体可以分成两组,每一组中包括3条常染色休和1条性染色体.就雄果蝇来说,其中的一组包括X、II、III 、IV.另一组包括Y、II、III 、IV

有禁必止

由于是排成两个方阵,所以只能是
85＝36＋49
B班剩下
1－1/7＝6/7
所以B班现在有36人
原来B班有
36÷6/7＝42（人）
原来A班有
85－42＝43（人）

Keep yourself happy ,when you are in the heavy rain. Maybe when you are qoing to shcool in a hurry .Unluky,it rains heavier ,you may get angry . But why not think it was a luky day for you .With the rain ,ground has water to take a bath ,flowers have water to drink ,everthing looks new .How about yourself ,you have clear air to breath .So ,don't make yourself angry with such a rian day . It's beautiful .

因为全体人员可排成一个方阵,故总人数是一个完全平方数,设每行m人,则总人数为m2人,根据变化队形时按5人分组,可考虑m为5n、5n+1、5n+2、5n+3、5n+4中的某种情形,这里n为自然数,从而全体人数m2可能是：
⑴ (5n)2 =5•(5n)2
⑵ (5n+1)2 =25n2 +10n +1=5(5n2 +2n)+1
⑶ (5n+2)2 =25n2 +20n +4=5(5n2 +4n)+4
⑷ (5n+3)2 =25n2 +30n +9=5(5n2 +6n+1)+4
⑸ (5n+4)2 =25n2 +40n +16=5(5n2 +8n+3)+1
由此可见,不论哪一种情形,总人数按每组5人分组所多出的人数只能是1或4,不可能多3人.