单选题某药材粉末或薄片置载玻片上，加95%乙醇1～2滴及3%硝酸1滴,加盖玻片镜检,有黄色针状、针簇状结晶析出，加热后结晶消失显红色的药材很可能是（）

单选题花序全是舌状花，具有乳汁的药用植物是( )。 A．大蓟 B．白术 C．茵陈 D．蒲公英

单选题A．香附B．木香C．陈皮D．枳实

单选题青皮和枳实功效的共同点是A．理气健脾B．破气消积C．燥湿化痰D．降逆止呕

单选题既能疏肝行气，又能清泄肝火的药物是A．香附B．川楝子C．柴胡D．青皮

单选题以下关于麝香的说法不正确的是A．入丸散，每次0.3～0.5gB．不入煎剂C．孕妇禁服D．外用适量

单选题A．丹参B．红花C．益母草D．桃仁

单选题枸杞子、墨旱莲和女贞子共同的功效是

单选题下列哪项不是海螵蛸的功效

单选题水绵的生殖通常是( )。 A．单性生殖 B．无性生殖 C．卵配生殖 D．接合生殖

单选题Come on—Everybody's doing it. That whispered message, half invitation and half forcing, is what most of us think of when we hear the words peer pressure. It usually leads to no good—drinking, drugs and casual sex. But in her new book Join the Club, Tina Rosenberg contends that peer pressure can also be a positive force through what she calls the social cure, in which organizations and officials use the power of group dynamics to help individuals improve their lives and possibly the word. Rosenberg, the recipient of a Pulitzer Prize, offers a host of examples of the social cure in action: In South Carolina, a state-sponsored antismoking program called Rage Against the Haze sets out to make cigarettes uncool. In South Africa, an HIV-prevention initiative known as LoveLife recruits young people to promote safe sex among their peers. The idea seems promising, and Rosenberg is a perceptive observer. Her critique of the lameness of many pubic-health campaigns is spot-on: they fail to mobilize peer pressure for healthy habits, and they demonstrate a seriously flawed understanding of psychology. "Dare to be different, please don't smoke!" pleads one billboard campaign aimed at reducing smoking among teenagers teenagers, who desire nothing more than fitting in. Rosenberg argues convincingly that public-health advocates ought to take a page from advertisers, so skilled at applying peer pressure. But on the general effectiveness of the social cure, Rosenberg is less persuasive. Join the Club is filled with too much irrelevant detail and not enough exploration of the social and biological factors that make peer pressure so powerful. The most glaring flaw of the social cure as it's presented here is that it doesn't work very well for very long. Rage Against the Haze failed once state funding was cut. Evidence that the LoveLife program produces lasting changes is limited and mixed. There's no doubt that our peer groups exert enormous influence on our behavior. An emerging body of research shows that positive health habits—as well as negative ones—spread through networks of friends via social communication. This is a subtle form of peer pressure: we unconsciously imitate the behavior we see every day. Far less certain, however, is how successfully experts and bureaucrats can select our peer groups and steer their activities in virtuous directions. It's like the teacher who breaks up the troublemakers in the back row by pairing them with better-behaved classmates. The tactic never really works. And that's the problem with a social cure engineered from the outside: in the real world, as in school, we insist on choosing our own friends.

单选题我国历史上最早从理论上剖析方剂的医家是( )(1997年第41题)

单选题A．益胃生津，润肺清心B．润肺止咳，清心安神C．滋阴补血，生津润肠D．养胃生津，清退虚热E．滋阴润肺，补脾益气(2005年第92，93题)

单选题下列子仁类药材中没有润肠通便作用的是

单选题治疗肺胃出血，宜首选

单选题A．红花B．五灵脂C．二者均是D．二者均非

单选题猪苓的性味是

单选题根有定根和不定根之分，定根中有主根，主根是从______发育而来。 A.直根系 B.不定根 C.定根 D.胚根

单选题下列哪项不是杜仲的功能?

单选题黄连与胡黄连均能主治： A．湿热泻痢 B．骨蒸劳热 C．小儿疳热D．阴虚发热E．肺热咳嗽