淬硬层深度怎么控制

完整的问题：There are 41 workers making toys .we know that for each worker ,they can make 8 toys A per hour ,make 4 toys B per or 3 toys C.And we know 5 toys A,3 toys B and 1 toy C are one set .So how many workers should make A.,B and C respect His fathers works (in a hospital) 对括号里提问写原因 "How to keep in good health"是什么意思? Ple let me know when you will go home的中文翻译 I can make toys 的汉语意思是? Toys,toys for girls and boys.Lots of lovely toys. did any of u had a broken heart?can u tell me how u have felt?please...it happened to me... sing songs in your heart to better youyou should sing songs to praise what God had done for you from time to time.singing songs is not only good for God,but also for your heart and for your mood,it will enhance your immue system and unable you to be "also would be","would also be"和"would be also"有什么区别?类似的还有“always have been”,"have always been"以及"have been always". I will also be able to be very joyful. 要怎样才能让自己有坚强的意志去做好每一件事来?求大神帮助 same和the same的区别 英语Education aims for formation of character.这句话当中aims作动词还是名词.如果是名词可以这样写吗,aims of education 请问Lack of education is an obstacle of success.的句子成分?1.　lack 是作名词吗?2.　哪些情况下动词可以直接放在句首? The sun heats the earth ,which makes it possible for plants to grow .for plants to grow the sun warms the earth,which makes it possible for plants _ 为什么是填to grow大神们帮帮忙 They sent an e-mail to their teacher.teacher为疑问对象,然后改成疑问句Who did they send an e-mail to?这样改对吗?后面一定要接to吗? They gave her a book(同义句) 不是说2012年世界末日吗?我在期待,速度赶紧来临吧.世界太不公平.赶紧来临吧,让我们一起面对死亡吧.我在期盼这那种感觉,到来的时候 ,我会静静的坐着,看着末日的来临. 为什么超导体不适合做电炉丝 为何很多人都期待世界末日快点到来?莫非不幸福? Is it a book?回答可以为 It’a book 为什么·········世界末日 还不来了··什么时候能来···快点吧 好期待···· 英语：similar和alike有啥区别? Is it a book这句子哪里错了看题看错了!是 Is this your an eraser？ 阳光的心灵,光明的世界! 首先,对不起大家,我的财值分不够赏你们,但是问题又多.请大家多多原谅!the conditions for the tender.（招标条件）为什么不翻译成the conditions of the tender? She sends her best wishes to him Not me.我只想知道这是什么意思 帮我翻译一下 要唯美一点 翻译你可以叫我艾瑞克 用什么方法能使自己的意志坚定 怎么能使自己意志坚定 如何能使一个人的意志坚定?【词语】：意志【注音】：yì zhì【释义】：人类特有的有意识、有目的、有计划地调节和支配自己的行动的心理现象。其过程包括决定阶段和执行阶段。决定阶