第6题: [单项选择]{{B}}Question 11 to 18 are based on the conversation you have just heard.{{/B}} A. The centre has just opened. B. He’s looking forward to using the centre. C. The door to the fitness centre is locked. D. There are long lines to get into the centre. 参考答案:B 答案解析:[听力原文]
W: Have you heard of the new fitness centre they’re building downtown
M: Yeah. I can hardl
第24题: [单项选择]某女童,最近出现光线较暗时视物不清症状,且症状逐渐加重,眼睛干涩、畏光,全身皮肤干燥,多次发生呼吸道感染,生长发育迟缓,眼结膜外侧出现白色泡沫状聚集物。该女童可能缺乏() A. 维生素C B. 维生素B1 C. 维生素B2 D. 维生素A E. 维生素D 参考答案:D 答案解析:维生素A缺乏最早的症状是暗适应能力下降,即在黑夜或暗光下看不清物体,维生素A缺乏最明显的结果是眼干燥症(干眼病),维生素A缺乏还可引起机体不同组织上皮干燥和增生角化,儿童维生素A缺乏最重要的临床诊断体