现有下图示仪器和装置,请回答问题 ①写出实验仪器的名称:A是,B是,E是。 ②

题型:填空题

问题:

现有下图示仪器和装置,请回答问题

 

①写出实验仪器的名称:A是         ,B是         ,E是         

②实验室若用过氧化氢溶液和二氧化锰制取氧气,应选用的仪器是           ,(填字母,下同,写一种答案即可)

③用高锰酸钾制取氧气,应选用的仪器是        ,(写一种答案即可)反应的文字表达式                                   ,实验结束后发现导管中出现紫红色,造成此现象的原因是                         。使用E时,应注意的事项                                     (写出一条即可)

④在③中你所选用氧气收集方法的原因是_________________,若将一带火星的木条伸入集气瓶口、瓶中、瓶底都未能燃烧的可能原因是_________________________。

⑤若利用排空气法收集氧气的验满方法是______________________________。

⑥.在做水过滤的实验时,发现过滤后的水仍然是浑浊的,其原因是                     

玻璃棒所起的作用是                            

考点:测容器—量筒称量器—天平加热器皿—酒精灯常见仪器和装置的用途
题型:填空题

Mini  Book  Excerpts(节选)

Biography

When Salinger learned that a car park was to be built on the land, the middle-aged writer was shocked and quickly bought the neighboring area to protect it. The townspeople never forgot the rescue and came to help their most famous neighbor.

J.D. Salinger A Life by Kenneth Slawenski(Random House,$27)

Mystery(疑案小说)

“You’re a smart boy. Benny’s death was no accident, and you’re the only who saw it happen. Do you think the murderer should get away with it ? ”The boy was starting stubbornly at his lap again.

A thought suddenly occurred to Annika, “Did you …You recognized the man in the car, didn’t you?”

The boy hesitated, twisting his fingers, “Maybe,” he said quietly.

Red Wolf by Liza Marklund(Atria Books, $25. 99)

Short Stories

She wants to say to him what she has learned, none of it in class. Some women are born stupid, and some women are too smart for their own good. Some women are born to give, and some women only know how to take. Some women learn who they want to be from their mothers, some who they don’t want to be. Some mothers suffer so their daughters won’t. Some mothers love so their daughters won’t.

You Are Free by Danzy Senna (Riverhead Books,$15)

Humor

Do your kids like to have fun? Come to Fun Times! Do you like to watch your kids having fun? Bring them to Fun Times! Fun Times! “amusement cycling” is the most fun you can have, legally, in the United States right now. Why spend thousands of dollars flying to Disney World when you can spend less than half to that within a day’s drive of most cities?

Happy And Other Bad Thoughts by Larry Doyle(Ecco,$14. 99)

小题1:If the readers want to know about the life of Salinger , they should buy the book published by         

A.Random House

B.Atria Books

C.Riverhead Books

D.Ecco小题2:The book Happy And Other Bad Thoughts is intended for       .

A.young children

B.Disney World workers

C.middle school teachers

D.parents with young children小题3:Which book describes women with characters of their own?

A. Happy And Other Bad Thoughts      B. You Are Free

C. J. D. Salinger :A Life                D. Red Wolf

小题4:After finishing the book Red Wolf, the readers would learn that        .

A.the murderer got away with the crime

B.Benny died of an accident

C.the boy helped arrest the murderer

D.Annika carried out the crime

题型:填空题

亚运会的志愿者一般分为()和()者两类。

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市场经济秩序包含许多方面的规范,其中市场行为秩序主要包括( )。

A.产业政策秩序

B.企业集团秩序

C.反不正当竞争秩序

D.反倾销秩序

E.工业产权转让秩序

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经营现金净流为“+”,投资现金净流为“+”,筹资现金净流为“+”。一般而言,这种公司主营业务在现金流方面能自给自足,25投资方面收益状况良好,这时仍然进行融资,如果没有新的投资机会,会造成资金浪费。

题型:填空题

为谋取商品价格、利率、汇率或股价绝对水准变动的利益,买入或卖出期货者,称为()。

A.基差交易商

B.价差交易商

C.头寸交易商

D.证券交易商

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