题干

同一温度的华氏度数y(℉)与摄氏度数x(℃)之间的函数表达式是y=
9
5
x+32.若某一温度的摄氏度数值与华氏度数值恰好相等,则此温度的摄氏度数为____℃.
上一题 下一题 0.0难度 选择题 更新时间:2016-03-07 07:05:16

答案(点此获取答案解析)

-40

同类题1

阅读理解

    My mother once was a follower of traditional methods when it came to anything. She cooked traditional food, liked dressing up traditionally and thus was fond of traditional way of shopping. She loved going to the market and going from one shop to another to find out what suited her best. She could walk miles when it came to shopping along with her friends. She was familiar with all the local markets and shops and by now knows very well where she can get best discounts and material.

    However, now she begins to feel her age and gets tired when she goes out in the market. So one day I decided to introduce a new shop to her, a shop that is much bigger than her usual markets and where she gets better discounts. Yes, I am talking about the online gift stores. She has basic knowledge of computers and can operate a laptop. Initially (起初) she was doubtful about shopping from these online gift shops and wasn't too sure about the quality of the products.

    One fine day I decided to get some branded things for her first so that she could build trust in these shops. I ordered a Timex watch for her along with a Sisley handbag. She never bought things online but when they were delivered as a gift, she jumped for joy. She could not believe that I had ordered these gifts for her despite her being not very positive about online shops. However, after she saw both the products, she believed that these online gift shops would send the promised brand and products. She loved her new watch and the handbag.

    After this incident she ordered a gift for her friend's wedding anniversary. She chose a gift basket that could be made to her requirements. They sent a beautifully decorated basket with fine wines and chocolates. The basket was so carefully decorated that it immediately became her friend's favorite gift. Since then my mother has been often shopping online.

同类题4

      阅读下文,回答相关问题

                                                                                                   背景 

                                                                                                  朱以撒
      ①春气氤氲,我倚在这个破旧石塔的阑干上想。一定有许多生物和我一样,走出沉闷的居室,到一个大得无边的空旷处,呼吸和张望。
      ②我看了很久,开朗的天幕一直没有飞鸟经过,这个禽最广大的表演舞台,此时虚静以待。难道我没有看到头顶盘旋的鸽群吗?这些由人养,供人玩赏的菜鸽,飞起来永远是那种落入圈套一般的路数,整齐划一。它们在天幕一角规划好飞翔线路,便一味进行着毫无新意地环行。它们的主人十分欣赏这种阵势,他每日花费的玉米、花生,就是要把它们训练成一个整体,而不是那些毫无管束的野鸟。以前,这里的野鸟成群成片。尤其像菜鸽兄弟——飞起来箭一样的斑鸠,野性十足地在丛林中穿来穿去。斑鸠与鸽在形体上相似,使鸽的主人隐忧:可别拐带走整个鸽群。比斑鸠飞得高远从容的是鹞子,很风度地定定摊在空中,像一片舒展的灰瓦。灰瓦像一大片阴影,令地面的母鸡神色紧张,在俯冲下来的瞬间,悲剧就发生了。更多的鸟是闪过天幕的游侠,从这边到遥远的那边,飞起来没有章法,时快时慢,升高跌落,成为不可规划的剪影。现在,没有了飞鸟,天_幕沉寂空洞,像没有生命点播的土地,这么大的空间白白浪费。飞机是天幕上最大的鸟,自从有一个机场建在城市边缘,每日都可以看到钢铁大乌腾空而起,夹带着夸张的轰鸣。这是比鸽子更为拙劣的表演,翅羽不动,身段刻板。那些自由自在的野鸟,竟然以身击之。这个偌大的背景,原先就是属于翅羽翻动的——当一颗流星匆匆坠落,漆黑的天幕为之生动片刻,当鸟群从晴朗的天幕消失,它成了我们不再仰望的理由。
      ③在田野里想念田野。写下这个句子时,田野里已经是一片绿色了,我一直带着传统的眼光来看待它,当时我对田野的理解,就是它的狂野。杂草长得比庄稼快,草丛中潜伏着竹叶青,信子像微小的闪电巡回;蚂蟥像幽灵一般浮游。田埂上行,野蔓绊着,冷不防跌入泥水。田野终须由农民治理,田野只能生长庄稼,还有农耕人家,它们是土地上紧密相依的几个部分——我们认识了庄稼的颜色,也就认识了这些生长元素。是从什么时候起,田野不再生长庄稼了呢?空间的历程是这么重要,千百年来,土地携带着众多浮华生命,向前。每一个时刻,这块厚实的地面上都在生着,或者死着。没有停滞下来的能量,任何一粒生命的种子,落入其中,不长出枝叶来是没有理由的。不再需要犁耙的田野,不再需要与泥水打交道的人。似乎在一夜之间站了流水线的跟前,他们生理上做好了气力的准备,而心理上,还须静静地等待着适应时光的到来。
      ④如果留心一下,山村背景里的生动,还是由一些细节组成。在这个生长着成片的龙眼树的村子里,米粒大金黄的花开时节,村子热闹起来。遥远的养蜂人载着一箱箱的蜂房来到树下,他们似乎与村里有着无形的契约,果树倚仗蜜蜂的勤劳授粉得以丰收,养蜂人则得到甜蜜。整个村头村尾,响着嗡嗡吱吱的鸣弦声响,人们嗅到了被万千翅羽扇起的幽香,树的主人,在养蜂人告辞的时候,可以得到一罐纯正的花蜜。这是养蜂人表示的谢意。很快,他们继续追花、采蜜,他们本身就是不倦行走的蜜蜂,熟悉各种花树花期,走南闯北,麾下万千子民。村子里总是要有些生人才有比照,他们带着陌生的气味进来,让无数的眼光打量,服饰、发型及至说话声调,都成为话题。如今,龙眼树一年年的少了,房子一幢幢地起来,剩余的灰土、碎渣,都堆在树头上,加速了枝叶的疏松、剥离。养蜂人已经不来了,他们肯定还在路上,却把这个村子忘在脑后,把这个每年都有一段清幽弥漫的空间,存放在记忆的仓库里了。
      ⑤与背景相适应的细节模糊了,或者消失了,人置其间,就有一些恍惚。我们所能自慰的,就是当我们口头上感叹着既往的种种琐屑时,它已经在我们的中间,对照着我们此刻的生活了。