20xx年高考全國2卷理綜化學(xué)及答案-文庫吧資料
2024-11-15 00:16本頁面
【正文】 方向移動 C．加入少量HCl溶液，溶液中c(H+)減小 D．加入少量CH3COONa固體，平衡向正反應(yīng)方向移動12．茉莉醛具有濃郁的茉莉花香，其結(jié)構(gòu)簡式如下所示：CH CH CHO CH2(CH2)CH3關(guān)于茉莉醛的下列敘述錯誤的是： A．在加熱和催化劑作用下，能被氫氣還原 B．能被高錳酸鉀酸性溶液氧化 C．在一定條件下能與溴發(fā)生取代反應(yīng) D．不能與氫溴酸發(fā)生加成反應(yīng)13．由硫酸鉀、硫酸鋁和硫酸組成的混合溶液，其PH=1，c(Al3+)=L1的三種溶液等體積混合，充分反應(yīng)后沒有沉淀的一組溶液是： A．BaCl2 NaOH NaHCO3B．Na2CO3 MgCl2 H2SO4 C．AlCl3 NH3我覺得我的學(xué)校生活是忙碌而開心。我們開始上課，下午兩點半，學(xué)校在4:，有時候我會呆在教室。在早上，我有四節(jié)課，在下午我有三節(jié)課。但令我吃驚的是，有一個大的魚上鉤了。回到我的釣魚的地方，我發(fā)現(xiàn)我的釣竿漂浮在水面上。那個男孩救了。投擲釣竿，我沖了一箭，跳進河里，游向男孩很快。忽然一聲：“幫助！救命啊。我fimnd一個最優(yōu)惠一點。我的姑媽獨自住在一個山村，一條小河蜿蜒的課程。你覺得他怎么樣？高一英語作文：A Day in My Summer Vacation Last summer I spent a twoweek vacation at my aunt39。幾天后，她能夠回到學(xué)校。然后他送她回家。有一天，我的一個同學(xué)，李彤得了重感冒。他總是樂意幫助我們。他甚至借英語書給我們。他問我們聽，讀，說，寫。我們都知道英語是比較難學(xué)但在他的課，我們覺得英語很容易，也很有趣。在他的課上，我們感到非常高興。他是一個有幽默感的男人，一直對我們很友好。我們都叫他“朱先生。高一英語作文：My English TeacherOf all the teachers, I love my English teacher is a very good teacher and about thirty years all call him Mr is not tall but a little is a man with a good sense of humour and always friendly to all like him and his his class, we feel very always makes his English lesson know English is rather difficult to learn but in his class, we feel English is very easy, and also very often shows us how to learn English asks us to listen, to read, to say and to class, we always talk with him in even lends English books to we have difficulty in understanding, we can go and ask is always happy to help not only cares for our study, but also for our day, one of my classmates, Li Tong had a bad took her to see a doctor, and got some medicine for he sent her Li Tong stayed at home, Mr Chu went to her home and helped her with her days later, she was able to go back to is my English do you think of him?所有老師中，我最愛我的英語老師。這是一個很小的，但也有許多花和樹。有一張桌子旁邊的床上。高一英語作文：My New HouseI live in a new house are three bedrooms, two bathrooms, a study, a kitchen, a diningroom and a large ’ a desk beside my the bed, there are some ’s a map of the world on the ’s telephone between the map and the ’s a garden near my ’s a small one, but there are a lot of flowers and it there are some swings and there’s a slide, too, sometimes I go and play 。讓樹，花和草回到我們的家。我們永遠不會破壞自然的平衡。我們感到很難過。所以專家們宣稱自然界的平衡被破壞了。這么多的樹木被砍伐，更多的大型城市將設(shè)立。有些人會問為什么不把土地覆蓋著樹，花和草？為什么不阻止土地被沙漠？為什么不阻止空氣被污染？為什么不阻止地球中毒嗎？是的！我們的環(huán)境受污染的速度比自然和人的努力，可以防止。有很多大或小，紅色或綠色，美麗的花園，在我們身邊。她為我們提供了足夠的食物，足夠的水和足夠的生活空間。高一英語作文：我們可愛的家 Our Lovely HomeWe are now living in a mon is the provides us with enough food, enough water and enough living we must do everything to protect are lots of big or small, red or green, beautiful gardens around there are still some other lands bare of grasses or trees on the people may ask why not led all lands covered with trees, flowers and grasses? Why not prevent the lands from being desert? Why not prevent the air from being polluted? And why not prevent the earth from being poisoned? Yes!Our environment is being polluted faster than nature and man’s efforts can is bring us more people, and more people will bring us more many trees will be cut down, and more large cities will be set of waste material, in return, is produced and harms the some experts declare that the balance of nature is being survival of man is in feel really sad about can we do to solve this problem? We must forbid cutting down trees and forbid killing animals and pouring waste water into rivers and so ’ll never destroy the balance of ’s get along well with all the t
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