为减少苯并芘的形成，一般认为理想的发烟温度以（）为宜。A、100～200℃ B、20

女，45岁，右耳听力下降半年余，CT检查如图，最可能的诊断是（）

A.继发性胆脂瘤

B.脑膜瘤

C.三叉神经瘤

D.原发性胆脂瘤

E.听神经瘤

69043100是______位数，“9”在______位上，表示______，“3”在______位上，表示______，最高位是______位，数字“6”表示______．

阅读理解。

                                                        Tragedy at the Circus

     In yesterday's circus (马戏团) show, a tiger suddenly attacked its trainer and had to be shot dead.

As the circus packed up and left, circus officials said the show would go on, even without tigers.

     However, the officials can't simply turn a blind eye to the ethical problems left behind. Even before

this tragedy (悲剧), animal rights activists protested against keeping wild animals in unnatural conditions

and forcing them to suffer for the profit (利润) of circus organizers.

      It is now time for us to take effective steps to make sure that circus animals are treated properly.

     Circus Safe for Animals

     Our circus recently suffered a most tragic event in its history. While we are thankful for the pity from

the public, we are also astonished by the opinion expressed in "Tragedy at the Circus."

     First, our performing animals are not taken from the wild. As to the ethical problems. we always believe

humans and animals can-and should-live together nicely. To us, the performing animals are representatives

of their species (物种), and our circus is one of the only places left willing to support this special role of

performing animals in the existence of the species. Those who argue that circus life is harmful to animals

show little knowledge of these facts. Life in the "wild" is unsafe, but a continuous struggle for existence.

To overlook these reslities is the greatest fault against the animal kingdom.

     This circus has proven that animals are stronger and smarter than we could imagine. Within the circus

is a joyful atmosphere for both animals and humans: people are educated, and species saved.

1. What is the main purpose of the first passage?

A. To show pity for the performing animals.

B. To express worries about ainimal trainers'safety.

C. To deal with the difficult situations of the circus.

D. To call for action to protect circus animals.

2. What will the circus most probably do?

A. Take no notice of the tragedy.

B. Continue its performances.

C. Use fewer wild animals.

D. Limit its profit.

3. What does the circus think of its performing animals?

A. They are as clever as human beings.

B. They struggle continuously with human beings for existence.

C. They are helpful in saving their species.

D. They have equally natural living conditions as wild animals.

4. What is the most probable relationship between the two passages?

A. A public request and a newspaper report.

B. A newspaper article and a reply to it.

C. Two parts of a newspaper article.

D. Two newspaper reports.

计量工作的特点有（）。

A.科学性

B.一致性

C.准确性

D.可溯源性

E.法制性

长征

红军不怕远征难，万水千山只等闲。

五岭逶迤腾细浪，乌蒙磅礴走泥丸。

金沙水拍云崖暖，大渡桥横铁索寒。

更喜岷山千里雪，三军过后尽开颜。

在这次事件中体现了红军什么样的精神？