第7题: [单项选择]So little ______ about mathematics that the lecture was completely beyond me. A. I know B. I knew C. did I know D. do I know 参考答案:C 答案解析:[解析] 本题考查倒装句的用法。当否定词位于句前时,句子应用倒装句式。因句子的时态是一般过去时,故选C。
第17题: [单项选择]Psychologists clearly have their own marketplace and, ______, have a hold on the major portion of the outpatient services rendered to the public. A. as stated earlier B. stating earlier C. as is stated D. as was stated 参考答案:A 答案解析:[注释][A]表示“如前所述”之意。
第24题: [单项选择]联合应用抗菌药物的目的不正确的是() A. 发挥药物的协同作用以提高疗效 B. 使医生和患者都有一种安全感 C. 延迟或减少耐药菌株的产生 D. 对混合感染为扩大抗菌范围 E. 减少个别药剂量,以减少毒副作用 参考答案:B 答案解析:联合应用抗菌药物的目的是:①为充分发挥药物间的协同作用以提高疗效。如青霉素和链霉素或庆大霉素合用于治疗肠球菌性心内膜炎;②为延迟或减少耐药菌株的出现,如抗结核药物的联合应用;③对混合感染或病原菌未明的