这是高一数学第一章的东西，你的题干可能打错了！！！如果我没看错的话应该是已知a={1，3，5，7}，b={1，4，7}，c={2，5，7，8}。anb={1，3，5，7，}n{1，4，7，}={1，7}；anb={1，3，5，7，}u{1，4，7}={1，3，4，5，7}。根据此规定,可求的(a u c)n b...
Although a nut is a type of fruit, it is also a popular term for edible seeds, such as peanuts (which are actually a legume) and pistachios.[9] Technically, a cereal grain is a fruit termed a caryopsis. However, the fruit wall is very thin and fused to the seed coat so almost ...
Hangzhou is renowned for its historic relics and natural beauty. It is often known as one of the most beautiful cities in China. It has been ranked as one of the ten most scenic cities in China.Although Hangzhou has been through many recent urban developments, it still retains ...
Lies can never changes fact.谎言终究是谎言。 Lies have short legs.谎言站不长。 Life is but a span.人生苦短。 Life is half spent before we know what it is.人过半生,方知天命。 Life is not all roses.人生并不是康庄大道。 Life without a friend is death.没有朋友,虽生犹死。 Like a ...
How to Be a Good Student We students are the builders and masters of the country. It is important for us to know how to be a good student.A good student, I think, should be diligent in his studies. The more he studies, the more he will increase his knowledge. Without ...
No . 49, " Gordon Highlander " was restored to Great North green in 1958, although it had not previously carried the green pvery as it appeared in Heywood's pned black . The forewings are rather dark grey, more or less irrorated black, sometimes some spght scattered black marks, in...
And, let me go back to my drawing, so I can sell it to the magazine and buy food and wine for us."苏说:“天哪,我从来没有听过这种说法。老葡萄藤叶与你病情好转有什么关系呢?以前你非常喜欢那棵葡萄藤。不要犯傻了。为什么呢,因为今天早上医生告诉我,你痊愈的机会不久就会出现——我们好好考虑...
Lord I'm doing all I can.上帝啊,我在竭尽全力的- To be a better man.成为一个好男人。Go easy on my conscience.凭着良知我从容不迫。'Cause it's not my fault.因为这不是我的错。I know I've been taught.我知道我已经学会了。To take the blame.接受责难。Rest assured my angels...
例句：An advantage of using the solar energy is that it won't create (produce) any pollution.使用太阳能的优点是它不会制造任何污染。八、The reason why + 句子 ~~~ is that + 句子 （...的原因是...）例句：The reason why we have to grow trees is that they can provide us ...
It was the first day of our winter holiday. All of us were very happy. Why? Because we have one month to do things we love to do. We are free. Although we have some homework. But we can finish them in several days. And the rest time we can make good use of my god...