太阳直接辐射强度的变化

√x+√y=√2011的整数解是 √x+√y=√2011的整数解是 满足（y+z)^2011+(z+x)^2011+(x+y)^2012=2的整数组（x,y,z)有几组? 满足|y+z|^2011+|z+x|^2011+|x+y|^2012=2的整数数组（x、y、z）有（ ）组? 不能用方程,一定要有列式甲乙两人射击练习,甲发射了10发子弹,乙发射了8发子弹,命中环数如下甲：7,8,6,8,9,5,4,7,10,6；乙：6,8,7,9,2,8,8,7.他俩谁的命中率较高? 请问“河北科技大学”这个名称翻译成英文要怎么说? DRIVER_POWER_STATE-FAILURE错误``是什么引起的呀?具体错误地址：0X0000009F The power is gone 和 have a power failure 都可以表示小型的停电吗? 求助一篇1910年的德国的专利电子文档发明人：wilhelm von pittler专利名称：Verfahren zum Schneiden von Zahnrädern mittels eines zahnrad-artigen,an den Stirnflächen der Zähne mit Schneidkanten versehen-en Schneidwerk He ________the display for several minutes before re-entering his shop.为什么是gazed at,不是用完成时才对的吗? 科学 物质的构成李同学打开很久没用过的铅笔盒,发现一块白色橡皮和一只红色的铅笔黏在一起了.把橡皮切开一看,发现里面一部分变成红色.从微观角度分析,橡皮里面的红色属于什么现象?为 跪求描写一个英雄人物的文章要求1400字左右,不低1200字.复制或抄袭的也行!中间要穿插自己的感想,人物要著名,知名度要高!是一个人! 科学题目关于物质的构成1."花气袭人知骤暖,鹊声穿树喜新晴.''这时南宋诗人陆游 Mrs White is famous for her kindness变同义句变is famous for 英语听力问题：what happened when the man was in the lift?A.the power failed B.the lift broke downC.the alarm button rang 原文材料：what were you doing when the blackout happened i was in the lift 结果答案选A为什么 the man who has the most power and influence and the highest social position~请问power与 influence之间and可不可以去掉?一个句子中可以有两个and并列吗? 自媒体有哪些 四川的电费是怎么收的?多少钱一度?会超过多少度居民用电变成商业用电? 已知丨a+(-5)丨+丨b+3丨=0,求a+b的值? 若|a|=5,丨b|=3,求a乘b的值 Take all those wonderful feelings you have and let them out you need to know your feelings,so they can lead you down the path you were ment to follow .max it all out when it comes to living your life .they are the key to making your dreams come true Let your past makes you better,not bitter .这是哪个地区的方言？是美式还是英式的啊？这是一个马来西亚人说的，别的地区也这么说么？如果不这么说，应该怎么说啊？是不是有好几种翻译方式呢？ You can't really let those bad things get to you.翻译 蓝色化合物溶于水的粉红色溶液,化合物是什么? 怎么写? 高中阅读理解题,求解答,求详细解析My elder brother Steve, in the absence of my father who died when I was six, gave me important lessons in values that helped me grow into an adult. For instance, Steve taught me to face the results of my 请问下面一句英语中and the rights of those on it 的代词those 和it 各代指什么?Poor people can then use the land as security to get bank loans.Land records can also show foreign investors that the land and the rights of those on it are The following error has occurred是什么意思 装系统出Output error file to the following location:装系统中弹出框File name 〔546〕Output error file to the following location: I hope to carry more links with you怎么翻来着?. witnesses____three people escape from the scene where the man was murdered.A reported to see B repored seeing C were reported to see D are reported to be seeing 能说明下原因吗? 解释下原因,尤其是第一空The student told me that he _______ the exam _______.A.has had;yesterday?B.had;the day before yesterday?C.had had;the day before?D.had had;yesterday 解释下原因尤其是第一空 power cut 过去是怎么写