【判断题】【消耗次数:1】
流行病学方法主要包括观察性研究和实验性研究方法。
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相关题目
【单选题】 流行病学实验研究与观察性研究之间的主要区别是
①  研究是前瞻性的
②  根据患病与否选择研究组和对照组
③  研究组与对照组样本大小相同
④  调查者是否向研究对象施加干预
【多选题】 流行病学的研究方法中,观察法指的是哪两类()。
①  A 比较法
②  B 实验法
③  C 描述流行病学
④  D 分析流行病学
【单选题】 下列哪一研究方法不属于流行病学的观察法
①  横断面调查
②  病例对照研究
③  前瞻性队列研究
④  随机对照临床试验
【简答题】 3、流行病学的研究方法有哪些?
【简答题】 试述流行病学实验研究与队列研究的异同。
【单选题】 下面哪种研究类型属于分析性流行病学( )
①  病例对照研究
②  横断面研究
③  监测
④  临床试验
⑤  筛检
【单选题】 下列哪项是流行病学实验研究的优点
①  可计算相对危险度和归因危险度
②  能够及早治疗病人或预防和控制疾病
③  可平衡和控制两组的混杂因素提高两组可比性
④  省时、省钱、省力,可进行罕见病的研究
【单选题】 下面哪种研究类型属于描述性流行病学( )
①  病例对照研究
②  横断面研究
③  队列研究
④  临床试验
⑤  现场试验
【单选题】 流行病学研究是从
①  个体水平研究疾病
②  集体水平研究疾病
③  分子水平研究疾病
④  细胞水平研究疾病
⑤  亚临床水平研究疾病
【单选题】 流行病学研究是从
①  个体水平研究疾病
②  群体水平研究疾病
③  分子水平研究疾病
④  细胞水平研究疾病
随机题目
【单选题】 A: I got a job from Dell B: Thats great news. Im very happy for you. A: Thanks. I feel like celebrating. Lets go have a beer. [填空].
①  Its on me
②  Its so fine today
③  Its your turn
④  It is rather expensive
【单选题】 A: Richard, class begins at 9, and you are late. B: I know, but I missed my bus, Im sorry. B: [填空]. You have to be here on time.
①  Thats no excuse
②  Dont mention it
③  You neednt be
④  No problem
【单选题】 A: Dont tell me youve got a headache again. B: [填空].
①  Sorry, I wont be late next time
②  Youre right, Im just joking
③  All right, I wont say it
④  OK, youve made your point
【单选题】 A: Im sorry. Those shoes are not available in your size. B: [填空].
①  No use saying sorry. Thats a real let down
②  Im truly grateful for your help
③  Its just as Ive expected
④  Thats a pity. Thank you anyway
【单选题】 A: [填空]? B: Yes, Id like to open a savings account.
①  What do you want to do, sir
②  Why have you come here
③  Do you have anything to do here
④  Can I help you, sir
【单选题】 A: Bill told me he could not come here because his father was ill. B: [填空]
①  Its good.
②  Thats bad.
③  He is impolite.
④  What a pity!
【单选题】 A: Do you know Marks phone number? B: [填空] . A: OK. I might as well look it up in the phone book.
①  Just a second
②  Not that I know of
③  I cant think of it now
④  Why ask?
【单选题】 A: How long can I keep the book? B: [填空].
①  Any period longer than four weeks, you will be fined
②  Four weeks, but you can renew it if you need it longer
③  You can check it on the computer over there
④  At most four weeks if you dont mind
【单选题】 A: Is it time for us to set off now? B: [填空]. We’ll have to wait for one more hour.
①  Certainly, it is
②  Thats all right
③  Sorry, I am afraid not
④  Sorry,its too long
【单选题】 A: We had a trip to China this summer. B: [填空] A: Yes, we did. In fact, we even encountered a lion.
①  Didnt you?
②  How did it go?
③  I guess you did.
④  I bet you had a great time.