A. whose job is to train other people B. who has been trained in more than one field C. who can see the forest rather than the trees D. whose concern is mainly with technical or professional matters 参考答案:D 答案解析:[解析] 事实细节题。由第二段第二句话“his educational background is properly technical or professional.”可知,他的教育背景或是技术性
第33题: [单项选择]口服有机磷农药中毒,一般出现症状的时间为() A. 10分钟~2小时 B. 2~6小时 C. 5~7小时 D. 8~12小时 E. 12~24小时 参考答案:A 答案解析:有机磷农药中毒发病时间与农药毒性大小、剂量及侵入途径密切相关。口服者和自呼吸道侵入症状发生快,可在10分钟至2小时内出现症状。经皮肤吸收者,症状常在接触2~6小时内出现。