
33.【答案】A【解析】细节理解题。根据第一段的Forecasting our ntc mealth .s far tougher.和第二段的These collectdata that can point to health or disease.可知,这项研究的目的是尝试顶测人的健康状况及疾病,
34.【答案】C【解析】推理判断题,根据第三段的Trials where volunteers agree to receive a virus are unusual.They also can bedangerous可知,一些志愿者是故意感染病毒的,
35.【答案】C【解析】推理判断题。根据最后一段的95 percent of prediction accuracy sounds good.But that number meanstelling one out of every2 0 people every night that they will get the flu when they actually won'L可知有些可能会被误诊,