第14题: [单项选择]The little boy was so fascinated by the {{U}}mighty{{/U}} river that he would spend hours sitting on its bank and gazing at the passing boats and rafts. A. very strong B. very long C. very great D. very fast 参考答案:A 答案解析:mighty：强大的，强有力的。We are dealing with forces that are mightier than ourselves．我们正在应付强于我们的势力。strong：强壮的
第28题: [单项选择]"Top soil" means ______. A. useless soil B. soil found under the earth C. soil on the surface of the earth D. dry soil which is found in the desert 参考答案:C 答案解析:依据第三段第二句“…preventing good and fertile top soil from being washed away…”……防止肥沃的上层土壤被大雨冲走。所以C是正确的。
第34题: [单项选择]麻药中毒治疗原则中不包括（） A. 停止注射 B. 保持呼吸道通畅 C. 针刺人中穴 D. 升压药物 E. 抗惊厥药物 参考答案:C 答案解析:局麻药中毒后首先要停止注射，然后针对患者的症状使用相应的药物或采取相应的措施。例如出现缺氧，可保持呼吸道通畅；血压下降可使用升压药物；出现惊厥，可使用抗惊厥药物；严重的中毒可表现为惊厥，抗惊厥是有必要
