第28题: [单项选择]Laws recently introduced in some states have ______. A. reduced the number of convictions B. resulted in fewer serious accidents C. prevented bars from serving drunken customers D. specified the amount drivers can drink 参考答案:B 答案解析:本题为事实题。文章第五段第一句“Tough new laws...to a marked decline in fatalities”指出,新实施的更严格的法律使得更多的人被捕或者接受测试,并且在很多
第30题: [单项选择]Dr. Smith failed many times but he finally ______ to find a successful way to solve the problem. A. broke off B. broke down C. broke out D. broke through 参考答案:D 答案解析:[解析] 本题需弄清以break为中心的四个动词短语的意思。A项的break off意为“停止讲话”;B项的 breakdown意为“(因机械、电力等故障)停止运转,失灵;失败,崩溃,瓦解;(身体状况
第31题: [单项选择]男性,18岁,上唇疖挤压后出现寒战、高热、头痛、昏迷。应首先考虑() A. 菌血症 B. 毒血症 C. 蜂窝织炎 D. 颅内海绵状静脉窦炎 E. 脓毒症 参考答案:D 答案解析:上唇疖属于"危险三角区"的疖,挤压后出现头痛、高热、昏迷等,提示病菌经内眦静脉进入颅内海绵状静脉窦,引起颅内海绵状静脉窦炎。