以下说法正确的是（）A、VHF通信调频后要先按下发话按钮隅合后才能通话。 B、HF通信

治疗鸡组织滴虫病的有效药物是（）

A.氯羟吡啶

B.二甲硝咪唑

C.三氮脒

D.盐霉素

E.氯化喹嘧胺

划分生活美容和医学美容的重要依据是（）

A.美容工具

B.美容用品

C.皮肤类型

D.施术时是否侵入皮肤组织

材料二：党的十七届三中全会指出：当前，国际金融市场动荡加剧，全球经济增长明显放缓，国际经济环境中不确定因素明显增多，国内经济运行中也存在一些突出矛盾和问题，我们必须增强忧患意识、积极应对挑战。要采取灵活审慎的宏观经济政策，着力扩大国内需求特别是消费需求，继续推动经济社会又好又快发展。

材料三：中央经济工作会议提出2009年经济工作的总体要求是：以邓 * * 理论和“三个代表”重要思想为指导，深入贯彻落实科学发展观，立足扩大内需，保持经济平稳较快增长，加快发展方式转变和结构调整提高可持续发展能力，深化改革开放增强经济社会发展活力和动力，加强社会建设加快解决涉及群众利益的难点热点问题，促进经济社会又好又快发展。

（1）分析材料一显示的经济信息。

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（2）结合材料一、二、三，请就如何扩大国内需求特别是消费需求，提几条合理化建议。

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要求各实验组与对照组在非实验因素方面尽可能一致的原则属于（）

A.随机原则

B.均衡性原则

C.对照原则

D.重复原则

E.抽样原则

The face of the 21sl century is already growing in a laboratory. Getting a piece of the new look could soon be as simple as writing a cheque.

Scientists in recent years have made giant leaps in the artificial production of skin, bones and tissue. While their research has been motivated by a desire to help accident and medical victims, their work is about to go commercial.

The burgeoning (萌芽) cosmetic surgery market has snapped up the technological advances. By the turn of the 21^st century, changing your face or improving your body will be limited not by your imagination or desire, but by the size of your bank account.

And there is even work being done on that, with the costs of cosmetic surgery being cut to make it affordable and accessible for the average woman and her partner.

"It’s no longer a vanity thing, it’s simply making use of the available technology to improve those parts of the body you might not be happy with, " Cindy Clovetti, a Toronto-based skin and beauty care expert, said. "People who 10 years ago said they would never use a computer and would never get a boob job (胸部整形手术) are now surfing the web getting, the latest information for their next operation. "

Latest figures in the United States indicate the number of patients receiving cosmetic surgery in 12 months will top the magic million within two years (there were 850000 last year), while the number of men seeking image-improving operations has increased 35 percent in the past four years.

Breast implants are now very much a bread-and-butter job for many cosmetic surgeons and the big advances have been made in the development of bone implants which can produce instant high cheek bones, sculpture better shaped noses and ears and give men the chisel-shaped jaw that is always a sure-fire (必定成功的) chick-magnet (吸引女人的东西).

British futurologist Ian Pearson speculates that by 2020, up to 96 percent of body weight will be replaceable with the brain being the only organ not interchangeable. "By 2020 you could have a new face, or new skin, and by 2030 a fully working replacement body part. By the end of the 21^st century, people will be able to get an entirely new body. \

Which of the following statements is true（）。

A. Most men don’t care for cosmetic surgery.

B. Most people receive cosmetic surgery to replace their disabled body part(s).

C. Most people need to undergo more than one operation to change or improve a body part.

D. Women and men alike want to use cosmetic surgery to improve their image.