某气态烃1mol最多与2molHCl发生加成反应，所得的加成产物1mol又能与8molCl₂反应，最后得到一种只含碳、氯的化合物，该气态烃为（   ）

语法填空

    About 3 years ago, something terrible happened to me. Our boat (catch) in a terrible storm. enormous wave covered our boat all at once and my younger brother (fall) into the sea. Our boat survived. But it was going the direction of the whirlpool. When we were on the edge of the whirlpool, I felt (calm) than when we were moving towards it. When the boat was on the inside of it, we were going around in (circle ) at great speed. I tied myself to a barrel, could help me to float. Then, without (wait), I dived into the sea. My elder brother was too (terrify) to leave the boat and sank into the bottom of the whirlpool. I did escape. The waves carried me to an area where I was picked up by some of my old friends, but they were unable (recognise) me, for my hair had turned white in less than a single day.

短语翻译

Since you are not able to take the exam this time，you will have to ________the final exam.

在△ABC中，若sinC+sin（B﹣A）=sin2A，则△ABC的形状为（   ）

—Must we leave the classroom now?

— No, you _____. You _____ leave after the bell rings.

Peter is wealthy, and he is always g with his money.

阅读理解

    An old story goes that once there were four single men, leading very boring lives. None of them were married, or had lovers, or did anything exciting. They just sat around all day and played mahjong(麻将). One day they played mahjong from 11 in the morning until 11 at night. During the game, no matter who won, the winning card was always the "four columns" card(the card shows four independent, parallel columns is two lines). Even more of a coincidence(巧合), it was November 11, or 11/11. In order to commemorate(纪念)the day, they nicknamed it Singles Day.

    Singles Day was first celebrated at various universities in Nanjing, capital city of Jiangsu Province during the 1990s. It got the name Singles Day because the date was comprised of four "ones". These college students had since graduated, and carried their's university tradition into society. Singles Day is now a special day for all fashionable youths.

    The main way to celebrate Singles Day is to have dinner with your single friends, but it's important that each person pay their own fee to show their independence. People also hold "blind date" parties in an attempt to bid goodbye to their single lives.

    Many singles also choose to say goodbye to their single lives on this day. Many people attend "blind date" parties and many people choose to marry on this day. In addition to meaning "singles", the four "ones" of the date can also mean "only one" as in "the only one for me". Some people will use this date and this meaning to tell their special ones that they are the only "one" in their heart.

反应A+B═C+D，8g A和12g B恰好完全反应，生成C和9g D，则生成C的质量为（　　）

He is (absence) today because he is ill.

         , students poured out of the school gate．

I never went through a final exam that was as difficult that one.

阅读下面这首小令，完成下面小题。

调笑令  边草

戴叔伦（唐代）

边草，边草，边草尽来兵老。山南山北雪晴，千里万里月明。明月，明月，胡笳一声愁绝。

将5.4gAl投入到200.0mL 2.0mol/L的某溶液中，下列说法正确的是（   ）

在△ABC中，角A，B，C的对边分别是a，b，c，若 ，则△ABC的形状为（   ）

阅读下面一段文字，完成下面小题。

诗是最早绽露的文学萌芽。诗和音乐像一对孪生的姐妹，从诞生之日起就紧密地结合在一起，以它特有的声情韵律感染着万千读者，影响着人们的精神世界。

《诗经》中的每一首诗，都是可以合乐歌唱的，“风”“雅”“颂”便是根据音乐特点所做的分类。从《诗经》到《楚辞》，以至律。绝、词、散曲，它们都清晰地展现了我国古代诗歌创作对音乐美的努力追求。白居易《与元九书》说“诗者，根情，苗言，华声，实义”;袁枚《随园诗话》说“其言动心，其色夺目，其味适口，其音悦耳，便是佳诗”;明代诗论家谢榛的《四溟诗话》主张“诵要好，听要好，观要好，讲要好。诵之(    ), 听之金声玉振，观之明霞散绮，讲之独茧抽丝”......不仅诗歌传唱丰富了人们的劳动生活，还为我国古代文化的传播、继承、发展做出了突出的贡献。

诗歌与音乐都是以抒情见长，都十分讲究节奏、韵律、音调，两者(    )， 互为一体。尤其是诗歌中对音乐的(    ) 描写，更保证了音乐与诗歌朝着更加理性的方向发展。因此，“音乐入诗”便成了文人常谈的话题。

(改编于时爱华《我国历代诗歌与音乐的关系和意义》)

的内角A，B，C所对的边分别为a，b，c，若 ，则 形状是（    ）

由氧化铜、氧化铁组成的混合物a g,加入2 mol·L^-1的硫酸50 mL时固体恰好完全溶解。若将a g该混合物在足量的一氧化碳中加热充分反应,冷却后固体质量为（   ）

往100mL的NaOH溶液中通入CO₂充分反应后，在减压和较低温度下，小心地将溶液蒸干，得到白色固体M．通入的CO₂的体积（标准状况）与M的质量的关系如图所示．

试回答下列问题：

This is an unpleasant subject _______  we might argue for a long while.