第17题: [单项选择]She wondered if she could have the opportunity to spend ___________here so that she could learn more about the city. A. sometimes B. some time C. sometime D. some times 参考答案:B 答案解析:some time是“一些时间,一段时间”。A.some times是“有时”;C.sometime是“某时,日后”;D.some times是“几次”,一般应说several times。
第26题: [单项选择]The word "bead" originally meant prayer, but now it refers to the rosary used in the prayer. This is an example of______. A. widening of meaning B. loss of meaning C. meaning shift D. narrowing of meaning 参考答案:C 答案解析:bead一词本意指“祷告”,后来用指祷告时所用的“念珠”,这一语义变化属于词义转移。
第27题: [单项选择]下列哪一种药物最常应用于治疗冠心病变异型心绞痛发作()。 A. α受体阻滞剂 B. β受体阻滞剂 C. 钙通道阻滞剂 D. 硝酸酯类 E. 血管紧张素转换酶抑制剂 参考答案:C 答案解析:钙通道阻滞剂可解除冠状动脉痉挛,抗血小板凝聚,改善冠脉供血和微循环灌注,治疗变异型心绞痛首选。