Below you will find some examples of study designs, please select the correct design for each example. The relation between total fiber intake and colon cancer was studied in 35492 male participants. Fiber intake was measured via food frequency questionnaires at the beginning of the study in 1988 and every two years thereafter prior to an endoscopic procedure to assess colon cancer. Between 1988 and 2006, 2099 colon cancer cases occurred. Occurrence of colon cancer was 39% higher in people with the lowest fiber intake as compared with people with the highest fiber intake. The study suggests that low intakes of fiber in men is associated with an increased risk of colon cancer. The study design is a:

翻译题。Clinical anesthesiology remains the main content of anesthesiology.Before anesthesia, anesthesiologists, missions are to evaluate,prepare and medicate for patients to acquire the patients, physical and mental condition,select adequate anesthesia thchnique and relieve anxiety;during the operation,anesthesiologists should provide analgesia or amnesia for patients to eliminate discomfort,induce sedation,promote hemodynamic stability,and alleviate surgery-related adverse reflection and stress response;after the operation,physical function of patients should be measured and monitored in PACU to regulate and correct abnormal condition,ensure the safety ofPatients and prevent postoperativecomplications. Quality of anesthesia management has a considerable influence on the safety of patients and success ofoperation.The practice of anesthesia is not confined to operation room but expanded to several fileds to implementanesthesia and sedation, such as endoscopic measurement,lithotripsy,magnetic resonance imaging,computedtopography scan,fluoroscopy,electroconvulsive therapy.