打印机致癌亲身经历

翁湛维881 最近巴西设计师将3D打印技术与医用B超相结合,给准妈妈腹中胎儿打印了1︰1的3D模型(如图),作为孩子成长的记录,B超利用的是超声波能传递_____... -
许连思19640846730 ______[答案] 信息 不能

翁湛维881某校欲将市教委挑拨的几台电脑配给数学老师,若三人合用一台,则缺一台;若四人合用一台,则有一台电脑只有三个人用.问该校有几个数学老师?这批电脑... -
许连思19640846730 ______[答案] 老师有:3*4+3=15人 电脑有:(15-3)÷3=4台

翁湛维881求一篇英语作文(使用电脑)80词左右, -
许连思19640846730 ______[答案] As known to all ,computers play an important role in our daily life now .But teenagers are always addicted to computer games, which makes them sink to a lower position. It dawns on me that we should use computer correctly. We can search useful ...

翁湛维881谁能帮俄做这些题目啊?英语好的帮帮俄.翻译:1.今天的报纸上有一些有趣的东西.2.我的电脑和你的一样贵.3.我在农村有过一些奇特的经历.4.人类于1969年7... -
许连思19640846730 ______[答案] 1. Today's newspaper has some interesting things. 2. My computer and you as expensive. 3. I had some strange in rural areas of experience. 4. Human 7.20 in 1969 in walked on the moon for the fir...

翁湛维881...厂商采用EAN - 13的条码码制并获得6901234的企业标识,(1)试计算下列各产品代码(五位)的效验码: 00000,00001,00002,00010,99999 要求写出计... -
许连思19640846730 ______[答案] 1) 690123400000 9(0+0+0+3+1+9)*3=39 +0+0+4+2+0+6 = 51690123400001 6(1+0+0+3+1+9)*3=42 +0+0+4+2+0+6 = 54690123400002 3(2+0+0+3+1+9)*3=45 +0+0+4+2+0+6 = 57690123400010 8(0+0+0+3+1+9)*3=39 +1+0+4+2+0+6 =...

翁湛维881...全都正确的一项是( ) ①在现代社会生活中,电视和电脑这一对时代的宠儿,对我们来说几乎是不可或缺的. ②真是好事多磨.经历了许多挫折,他的... -
许连思19640846730 ______[选项] A. ①③⑥ B. ①②⑤ C. ②④⑤ D. ③④⑥

翁湛维881图所示的USB电热水杯垫是一种新型时尚的产品,把它接在电脑的 USB 电源上工作时,常温下可将咖啡、茶、牛奶等饮料保持 45℃~60℃温度,若电脑... -
许连思19640846730 ______[答案] (1)10min消耗的电能为: W=UIt=5V*0.5A*600s=1500J; (2)电热水杯垫的电阻为: R= U I= 5V 0.5A=10Ω 当功率变为1.6W时,由P= U2 R可得其两端的电压为: U′= PR= 1.6W*10Ω=4V. 故答案为:1500;4.

翁湛维881给我大神求一篇英语作文.假如你是玲玲,你的朋友tom向你询问如何使用电脑做作业的问题.请你结合本模块所学知识,给tom发一封电子邮件,告诉他如何使... -
许连思19640846730 ______[答案] 您好,很高兴为你解答!以下为我按照您的要求手工写就的文章:Dear Tom,Tommorow is Saturday. I have a lot of things to do. I'll get up early at 7 o'clock and have breakfast at 7:30. After breakfast ,I'll do...