鸡的性别决定方式属于ZW型，现有一只纯种雌性芦花鸡与一只纯种雄性非芦花鸡交配多次，F₁中雄的均为芦花形，雌的均为非芦花形。据此推测错误的是（   ）

假设你是市一中的学生李华，最近你所在的城市将举行一场大型国际贸易博览会，为此需要大量懂英语的志愿者，你对此很感兴趣，请按照以下要点用英语给博览会组织方写一封信报名参加。

1). 身份及目的

2).自身优势（兴趣、相关经历）

3). 信心与希望。

注意：

1). 词数100左右；

2).可以适当增加细节，以使行文连贯；

3).开头语已为你写好，不计入总词数。

参考词汇：国际贸易博览会International Trade Fair

Dear Sir to Madam,

    I am glad to have read your advertisement.

Yours truly,

Li Hua

阅读短文,从每题所给四个选项（A、B、C和D）中选出最佳选项。

    Steel, concrete(混凝土) and glass are the usual materials in any skyscraper. But more high buildings are now using wood.

    In the last four years, Australia, Norway, England and Canada have all built wooden skyscrapers. The latest one is in Sweden, a new, 19-storey wooden hotel called "Sida vid Sida" (Side by Side).

    Why are wooden skyscrapers being chosen ahead of concrete ones? Let's find out.

    Is it strong enough?

    Wood has been used in many Chinese buildings for thousands of years, but is it strong enough for skyscrapers?

    "There's a lot of new materials made out of wood that are able to build big buildings," material expert Dr Michael Ramage told CNN when he was interviewed.

Architects (建筑师)have done thousands of experiment to make sure it is. They place layers of wood across one another coated with special glue to create very strong material.

Wood also lasts a long time and doesn't break down if it is well looked after. The examples include the rooftops of Beijing's Forbidden City and some 700-year-old houses in England.

Ramage also said on the internet that bamboo could be cut in special ways to make it even stronger than normal wood.

    Won't it catch fire?

    Wooden buildings sound dangerous when it comes to fire. But experts say they may be safer than concrete ones if there is a fire.

    "Wood doesn't burn in the way the public imagines," Ramage said. Very small pieces of wood catch fire easily, but very big pieces of wood are quite hard to set on fire, he said.

    王涯，字广津，其先本太原人，魏广阳侯冏之裔。祖祚，武后时谏罢万象神宫知名，开元时，以大理司直驰传决狱，所至仁平。父晃，历左补阙、温州刺史。

    涯博学，工属文。往见梁肃，肃异其才，荐于陆贽。擢进士，又举宏辞，再调蓝田尉。久之，以左拾遗为翰林学士，进起居舍人。元和初，会其甥皇甫湜以贤良方正对策异等，忤宰相，涯坐不避嫌，罢学士，再贬虢州司马，徙为袁州刺史。宪宗思之，以兵部员外郎召，知制诰，再为翰林学士，累迁工部侍郎，封清源县男。

    涯文有雅思，永贞、元和间，训诰温丽，多所稿定。帝以其孤进自树立，数访逮，以私居远，或召不时至，诏假光宅里官第，诸学士莫敢望。俄拜中书侍郎、同中书门下平章事，坐循默不称职罢。再迁吏部侍郎。

    穆宗立，出为剑南东川节度使。时吐蕃寇边，西北骚然，又略雅州，涯调兵拒之。上言：“蜀有两道直捣贼腹，一繇龙川清川以抵松州，一繇绵州威蕃栅抵栖鸡城，皆虏险要地。臣愿不爱金帛，使信臣持节．与北虏约曰：‘能发兵深入者，杀某人，取某地，受某赏。’开怀以示之，所以要约谆熟异它日者，则匈奴之锐可出，西戎之力衰矣。”帝不报。

    涯质状颀省，长上短下，动举详华。性啬俭，不畜妓妾，恶卜祝及它方伎。别墅有佳木流泉，居常书史自怡，使客贺若夷鼓琴娱宾。文宗恶俗侈靡诏涯惩革涯条上其制凡衣服室宇使略如古贵戚皆不便谤讪嚣然议遂格。然涯年过七十，嗜权固位，偷合训等，不能洁去就，以至覆宗。是时，十一族赀货悉为兵掠，而涯居永宁里，乃杨凭故第，财贮巨万，取之弥日不尽。家书多与秘府侔，前世名书画，尝以厚货钩致，或私以官，凿垣纳之，重复秘固，若不可窥者，至是为人破垣剔取奁轴金玉，而弃其书画于道。籍田宅入于官。

    昭宗天复初，大赦，明涯、训之冤，追复爵位，官其后裔。

（节选自《新唐书•王涯传》）