第11题: [单项选择]She took an umbrella with her this morning ______ she should be caught in the rain. A. so that B. in order that C. in case D. now that 参考答案:C 答案解析:[考点] 引导词 [解析] so that引导目的状语从句表示“以便”;in order that只引导目的状语从句,也意为“以便”;now that引导原因状语从句,意为“既然;由于”;i
第32题: [单项选择]构成肺内气-血屏障的组织结构是() A. Ⅰ型上皮细胞、Ⅱ型上皮细胞、毛细血管内皮基膜 B. Ⅰ型上皮细胞、Ⅱ型上皮细胞、上皮基膜 C. Ⅱ型上皮细胞、上皮基膜、毛细血管内皮基膜 D. 肺泡上皮、上皮基膜、Ⅰ型上皮细胞 E. 肺泡上皮、上皮基膜、毛细血管内皮基膜 参考答案:E 答案解析:即呼吸膜,由肺泡上皮、上皮基膜、毛细血管内皮基膜组成。