(6分)某实验小组根据下图所示装置探究燃烧的条件,请回答问题。 (1)检查装置气

题型:实验题

问题:

(6分)某实验小组根据下图所示装置探究燃烧的条件,请回答问题。

(1)检查装置气密性后,燃烧匙中放入少量的白磷,小烧杯内放入适量的碳酸钠粉末,组装好装置。打开弹簧夹,将溶液A缓慢加入到小烧杯内,溶液A是______,一段时间后,______(填写后续实验步骤和现象),关闭分液漏斗的活塞、弹簧夹,然后用凸透镜加热白磷,观察到白磷不燃烧,该实验过程的目的是______。

(2)停止加热,轻轻振荡装置,一段时间后打开弹簧夹,再用凸透镜加热白磷,观察到白磷燃烧,白磷燃烧的原因是______,该实验过程中发生反应的化学方程式为______。

考点:燃烧与燃烧的条件安全措施和生活经验爆炸、自燃验证物质燃烧的条件
题型:实验题

当粮食供求关系发生重大变化时,为保障市场供应、保护种粮农民利益,必要时可由()决定对短缺的重点粮食品种、在粮食主产区实行最低收购价格

A.国务院

B.国家粮食行政管理部门

C.中国农业发展银行

D.国务院发展改革部门

题型:实验题

下面哪种分类方法符合林奈提出的生物分类法(  )

A.将生物分为水生、陆生、飞行的生物

B.将昆虫分为害虫和益虫

C.将动物分为肉用、药用、宠物

D.将动物分为脊椎动物和无脊椎动物

题型:实验题

第二节:信息匹配(共5小题;每小题2分,满分10分)

请阅读下列应用文及相关信息,并按照要求匹配信息。请在答题卡上将对应题号的相应选项字母涂黑。

请阅读下列餐馆的信息:

A.The Regal Palace Chinese Restaurant

The Regal Palace Chinese Restaurant at Days Hotel & Suites offers healthy Chinese fare, with nourishing delicacies like braised chicken with Chinese herbs and braised crocodile meat with Chinese herbs. Available in January.8778 9888 ext 292

B.Han Mei Fang Chinese Restaurant

Zhaolong Hotel's Han Mei Fang Chinese Restaurant has prepared Taiwan-style seafood and classic dishes for the New Year. The menu features five-flavored nine-hole abalone, sweet and sour flavored squid roll, garlic-flavor prawn, and three-cup chicken. There are also the delicious noodles with pig's claw and prawns prepared with spirit served in a bamboo barrel.6597-2299 ext 0215

C.Huang Ting Cantonese Restaurant

Enjoy Chinese folk music over the New Year's Eve dinner at Huang Ting, Cantonese restaurant at The Peninsula Hotel Beijing, decorated in courtyard house style. It offers a set menu with a variety of seafood dishes. There are iced abalone, pan-fried king prawn with pesto sauce, grilled cod fish with fresh mango.8516-2888 ext 6691

D.Paulaner BrauhausPaulaner Brauhaus at Kempinski Hotel in Beijing has a live band performing over authentic German beer and dinner for New Year's Eve, and a countdown at midnight. On New Year's Day the hotel has beach games, with a Bavarian brunch.(0898) 3889-8888

E. Italian restaurant Da Giorgio

Italian restaurant Da Giorgio at the Grand Hyatt Beijing has a five-course set dinner for New Year Eve, with a complimentary glass of champagne. At the same time Grand Caf offers a dinner buffet with unlimited soft drinks, juices and imported red and white wines.8518-1234 ext 3738

F. Ken de Rouge

To mark its first anniversary, Ken de Rouge, located by the beautiful west bank of Houhai Lake, introduces two promotional feasts, at 988 yuan and 1,288 yuan, each comprising 14 courses, plus soup and dessert. The 988 yuan banquet has braised sea cucumber, tea-flavored prawn, and red carp in lotus leaf. The 1,288 yuan banquet has Buddha jumps over the wall soup, venison tendon and kong pao prawn. Offer valid until January 20th.6402-6665

请阅读下列就餐者的信息,并匹配适合他们的餐馆:

56. Niu Xiang is planning to study abroad and he would like to spend his New Year’s Eve in a western style restaurant, where he can join some foreign friends in welcoming the coming of the New Year.

57. The Blacks newly arrived at Beijing from Italy. Mr. Black prefers to try some sea-food while Mrs. Black would like to feel the traditional Chinese environment.

58. The Johnson boys have very good appetite and are especially fond of different drinks and juice. Their mother wishes to bring them to a place where they need not pay extra money for the drinks.

59. Yao Mingming is tired of the Hakka food his mother cooks. He wants to take her to some nourishing delicacies from other regions, like some special flavored seafood.

60. Mr. Smith owns a very big company. He would like to treat some business friends to a luxurious dinner in a quiet and beautiful environment.

题型:实验题

服务员在办理行李寄存时,填写的行李单应该一式()。

A.一份

B.两份

C.三份

D.四份

题型:实验题

简述溶剂萃取法的优点。

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