一定量的理想气体经历图1所示循环过程，下列判断正确的是，Aab过程内能增加，从外界吸热

PC合金材料是什么 502胶污染了金属物上怎么去除 元素+含量：C 70 Si 0.001 Mn 0.18 P 0.01 S 0.26 Cr 0.02 N i0.64 Mo 0.09 Cu 0.49 Al 0.018 Ti 0.008 V 0.014 Nb 0.02 W 0.12 Pb 0.07请问这是什么合金材料?用手持式合金测试仪分析后，合金成分如下：Fe95.6 Sn0.1 Mo0.3 Cu1.6 Mn 金属上面的胶如何去除 什么是合金材料 什么是合金材料?一定有金属吗? 如何去除金属上的残胶 解释一首诗的意思惊蛰已去眠不休,花开庭败水自流.夏雷匿雨声色起,梦尔着茧置衣绸. 5.You have to learn _______your mistakes.A about B of C from D for You must try your best to stop him____(make) the same mistake again. 选择：What lessons did you learn from your dad?What lessons did you learn from your dad?One of the most important things ______my father taughe me was to be honestA.thatB.whichLet's have a drink ______ Sunday afternoon,shall we?Could you tell me w 找一下这种英语单词—名词不容易区分是可数或不可数的,越多越好,写上意思 塑钢材质的发动机保护板好吗? 发动机下护板选金属的好还是塑钢的好? 塑钢材料机器那里的比较好,就是制造塑钢材料这类机器啊 发动机护板是金属的好还是塑钢的好 英语翻译If you will be rich man ,will you not love football?answer:because that made sense怎么翻译通顺求大神 You are beautiful I know because I made you god 翻译. players these days playing baseball not because the love it,but because of the money can make.翻译 l just made it,because l have no choice 谁能帮我翻译 “正前面,昆明湖静得像一面镜子,绿得像一块碧玉”这句话运用了什么修辞手法? 用有的……有的……有的……写一处的景色 描写一处景色的好段日日日日日日日日日日日日日日日日日日日日日日日日日日日日 日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日日 怎样描写一处景观 校园一处景 怎么写 关于绳和弹簧的问题如图所示：如果剪断最上面的绳子的瞬间,几个小球受到的拉力有变化吗?几个小球原来都是一样的,质量都为m. 其他能发生弹性形变的物体如橡皮绳的弹性势能表达式与弹簧的相同吗? She didn't have supper u___her daughter came back. Have you ever seen his daughter SHe is very beautiful.------Really?(____)A.What does she like?B.What is she look like?C.What is she like D.How is she?能不能把这一类的题目告诉我可答案是c.为什么是c 英语翻译是反意疑问句，打错了…… 读至少两本以上的名著,抄写精彩段落或句子并读后感 . 第三个字是其字组什么成语