Off without so much as a goodbye. A．did

60岁，男性患者，双侧掌指关节痛，尤以晨间加重，有僵硬感，活动受限，最可能的疾病是（）.

A.类风湿关节炎

B.骨关节炎

C.软组织炎

D.退行性关节炎

E.痛风

如果工资和物价以同比例上升，则实际工资（）。

A.增加

B.减少

C.不变

D.增加或减少取决于实际工资的绝对水平

女，25岁，经常胸闷心悸，经检查诊断为二尖瓣脱垂，其体征应具有（）

A.第一心音亢进

B.开瓣音

C.收缩早期喷射音

D.心尖区舒张期杂音

E.收缩中晚期喀喇音

Greenstreak is an international non-profit agency dedicated to the preservation of natural habitats and the animals that rely on them. With offices in over 20 countries, Greenstreak is one of the leading organizations in the fight to preserve our world’s precious resources. Since 1946, Greenstreak has worked with nonprofit groups, world leaders in politics, business and industry, and government organizations like the United Nations to change the way people think about conservation.
As part of our mission, Greenstreak offers a number of courses for interested individuals and groups of all levels on a range of topics related to ecology, biology, green riving, and conservation. We have a great deal of experience speaking to youth groups, schools, university symposia, and government conferences. In the interest of spreading the important message about honoring our planet, Greenstreak can customize a presentation to the specific needs of any group. If your organization is interested in having Greenstreak show up at your next event, please call your local Greenstreak office or visit us on the Web at www.greenstreak.org.
From: bartmanstead@schools.greenbrier.alberta.ca
To: events@greenstreak.org.ca
Date: April 13, 01:40.23 p.m.
Good morning! My name is Bart Manstead, and I’m a science teacher at Greenbrier Middle School in Greenbrier, Alberta, Canada. We are arranging a special science fair for Earth Day this year at the school. I’m currently in the process of organizing guest speakers for the event, and I would like to extend an invitation to Greenstreak to be our Guest of Honor.
We are a regional middle school for students in 5th through 8th grades (about 11-14 years old) for the city of Greenbrier and a number of surrounding districts. We have approximately 3,500 students at the school.
In order to determine if Greenstreak can provide what we’re looking for, I would appreciate it if you could send me more information about your presentations. Obviously, any kind of seminar would have to fit the needs of our students, the limits of our facilities, and the school budget. However, we would be delighted to arrange for you to be present at our science fair. Please reply at your convenience with the requested information. Thanks!
Bart Manstead

What does Mr. Manstead request in his e-mail

A．A Greenstreak representative to come to the school

B．More information on Greenstreak’s presentations

C．Information about Greenbrier Middle School

D．A copy of a previous Greenstreak presentation

世界贸易组织专家组裁定，美国在对中国输美暖水虾、金刚石锯片进行的反倾销调查中使用归零方法计算被调查企业倾销幅度的做法违反了《反倾销协定》，不符合世贸组织规则。这一裁定说明世贸组织（）

①实行公平竞争原则，积极努力确保发展中国家提高国际市场份额

②实行自由贸易原则，致力于解决成员之间的贸易争端

③坚持透明度原则，坚持走可持续发展道路，促进对世界资源的最优利用

④坚持非歧视原则，努力扩大成员之间的货物贸易

A.①②

B.②④

C.①③

D.③④