氧气瓶必须装置防震圈、安全帽、减压器。减压器上应当设有安全阀。使用的乙炔瓶必须（）放

温度是表示物体的______的物理量；常见的水银温度计是利用______的性质制成的．常见的测量温度工具有______、______和______．

如图所示，L是自感系数足够大的电感线圈，设其自身的直流电阻与小灯泡相同，D₁和D₂是两个相同的小灯泡，如果将开关先闭合，待灯泡亮度稳定后再断开，则开关S闭合、断开时，下列说法中正确的是（　　）

A．S合上时，D₁不亮，D₂亮

B．S合上时，D₁、D₂同时亮，但D₂明显比D₁亮

C．S断开时，D₂立即熄灭，D₁逐渐变暗，且D₁中的电流方向与S闭合时的电流方向相同

D．S断开时，D₂立即熄灭，D₁逐渐变暗，且D₁中的电流方向与S闭合时的电流方向相反

Summer Science Class registration(注册) begins on March 8! If you are interested in science，the environment，or conservation and you are in grades 7－12，sign up soon for Black Rock Forest Consortium's Summer Science Class program.You can download the Summer Science Classes 2013 brochure(手册) here.It is easy to register；just call 845­534­4517 or click here.

Twelve­week­long courses in the natural sciences and the arts are offered at Black Rock Forest in Cornwall from July 15 through August 9.Two more classes are offered with site partners，including “The Art of Scientific Observation，” hosted jointly by Black Rock Forest Consortium and Storm King Art Center，one of the world's leading sculpture parks，and “A Nautical Expedition，” hosted jointly by the Consortium and the Constitution Marsh Audubon Center.

We are delighted to announce two special “away” classes that are part of the Summer Science Class program this year: an “Adirondack Eco­Adventure” beginning August 11，and “Conservation Biology in Florida，” beginning June 23 and featuring field work on the Gulf Coast in cooperation with the University of Florida's Seahorse Key Marine Biological Laboratory.For more information on the Summer Science Class program，please read our press release.

Black Rock Forest Consortium is a nonprofit organization founded in 1989 to advance scientific understanding of the natural world through research，education and conservation programs.

小题1:If you want to be a member of Summer Science Class，you should ________．

A．visit Black Rock Forest first

B．download their brochure

C．call a phone 845­534­4517

D．register before March 8小题2:Summer Science Class's courses are________．

A．only about science subjects

B．cooperated by several organizations

C．from July 15 through August 9

D．hosted by the world's leading professors小题3:Where can you find the article?

A．From a web site.

B．From a traveling brochure.

C．From a novel book.

D．From one famous magazine.

男，60岁，突然呕鲜血300ml，柏油便300ml来诊。查体：血压90/60mmHg，脉搏100/min，血红蛋白90g/L，蜘蛛痣，肝肋下2cm，脾肋下3cm，其治疗首选（）

A.维生素K₁

B.6-氨基己酸

C.奥美拉唑

D.垂体后叶素

E.法莫替丁

患者，男，68岁，脑肿瘤术后。术后患者一般情况良好，医嘱记录患者24小时出入液量。

下列不属于每日排出量的是（）

A.痰液中含水量

B.尿量

C.伤口渗出液

D.粪便中含水量

E.由呼吸排出的水量