第13题: [单项选择]So little ______ about mathematics that the lecture was completely beyond me. A. I knew B. do I know C. did I know D. have I known 参考答案:C 答案解析:[分析] little是具有否定意义的词,放在句首时句子倒装。注意时态一致的问题,所以本题选C。
第15题: [单项选择]关于煎药前的饮片浸泡,下列说法不正确的是 A. 植物中药在煎煮前浸泡,其目的是为使中药有效成分首先溶解在药材组织中 B. 同时可避免在加热煎煮时,药材组织中所含蛋白质凝固,淀粉糊化,使有效成分不易渗出 C. 浸泡时间应根据药材的性质而定 D. 浸泡有利于有效成分的溶出,从而提高中药在临床上的治疗作用 E. 对花、茎、全草类药材为主的可浸泡2~3分钟,以根、根茎、种子、果实等药材,可浸泡6分钟,但浸泡的时间不宜过久 参考答案:E
第17题: [单项选择]What structures were adopted in seventeenth century colonies A. Simple houses that were primarily functional. B. Houses that were made of wood, stone, or brick. C. Houses with traditional designs from the Old Ages. D. Larger windows without shutters. 参考答案:A 答案解析:[听力原文] 18-23 Seventeenth century houses in colonial North America were simple structures that w
第25题: [单项选择]急性胰腺炎的表现 A. 上腹部节律性疼痛,进食后30~60分钟发作 B. 上腹部剧烈性疼痛,阵发性加剧 C. 腹壁柔韧感 D. 腹壁静脉曲张,血流方向正常 E. 上腹部节律性疼痛,进食后2~3小时发作,有时夜间被痛醒 参考答案:B 答案解析:急性胰腺炎表现为上腹部持续性剧痛,节律性疼痛为溃疡的表现。