乙酰水杨酸合成是以水杨酸为原料，在硫酸催化下，用（）乙酰化制得。

[单选题]Drug Overuse ① Nowadays,millions of people misuse and even overuse pain medications and other drugs. Research by the American National Institute on Drug Abuse （NIDA， 1999） shows that around 2% of the population over age 12 were using drugs non-medically. ② NIDA views medications as a powerful force for good in the contemporary world. They reduce and remove pain for millions of people suffering from illness and disease. They make it possible for doctors to perform complicated surgery to save lives. Many people afflicted by serious medical conditions are able to control their symptoms and become active， contributing citizens. NIDA points out that most individuals who take these drags use them in a responsible. ③ Nevertheless， overuse of drugs such as opioids， central nervous system（CNS） depressants and stimulants does lead to harmful reliance in some people and is therefore becoming a serious public health concern. Although this abuse affects many people worldwide， particular trends of concern to the medical profession in the US appear among older adults， teenagers arid women. ④ Though it may be a surprise to many， the misuse of medications may be the most common form of drug abuse among the elderly. Dr Kenneth Schrader of Duke University， North Carolina states that although the elderly represent about 13% of the US population， those aged 65 and over account for the consumption of one third of all drugs. People in this age group use medications roughly three times more than the general population and have poorer compliance with instruction for use. In another study of elderly patients admitted to treatment programs， 70% were women who had overused medicines. ⑤ Unfortunately， this trend among women does not only affect those aged over. In general， among women and men who are using either an anti-anxiety drug or a sedative， women are twice as likely to become addicted. In addition， statistics compiled for 12 —17 year olds show that teenage girls are more likely than teenage boys to begin overusing psychotherapeutic medication such as painkillers， tranquillizers， stimulants and sedatives. Paragraph①（）.

[单选题]通草的功效是（）。

[单选题]对申请注册的商标，商标局应当自收到商标注册申请文件之日起一定期间内审查完毕，符合《商标法》有关规定的，予以初步审定公告。根据商标法律制度的规定，该期间是（）。

[多选题]定压型呼吸机释出的潮气量，与呼吸机预置的（）

[单选题]与黄培芳、谭敬昭并称为“粤东三子”的清代作家是（）

[判断题]税收具有维护国家政权的作用。

[问答题]筋矩形截面构件正截面受弯承载力计算的基本假定

[单选题]鉴别肝外胆管结石或肿瘤性梗阻，有利于结石诊断的是（）。

[单选题]社会工作者在服务过程中应充分认识到人与人之间的关系的重要性，包括设身处地为他人着想，这体现了社会工作价值观中的（　）。

[单选题]重型食管炎营养治疗一般首选（　　）。

[单选题]乙酰水杨酸合成是以水杨酸为原料，在硫酸催化下，用（）乙酰化制得。

[问答题]用化学方法鉴别下组化合物：水杨酸、乙酰水杨酸、水杨酸甲酯。

[单选题]在乙酰水杨酸的制备中，为了检查反应液中是否存在水杨酸，可采用（）

[填空题]乙酰水杨酸即（），是十九世纪末成功合成的一个用于解热止痛、治疗感冒的药物，至今仍广泛使用。乙酰水杨酸是由（）与（）通过酯化反应得到的。

[单选题]3%水杨酸属于（）。

[单选题]水杨酸具有（）

[单选题]水杨酸的鉴别是（）

[名词解释题]水杨酸

[单选题]水杨酸（　　）。

[名词解释题]水杨酸反应