[单项选择]{{B}}Questions 11to 18 are based on the conversation you have just heard.{{/B}} A. He lent her his extra pen. B. He offered her a pencil. C. He was afraid of losing his pen. D. He said he didn’t have any extra ink.
参考答案:B 答案解析:[听力原文]
W: Could you lend me your pen Mine has just run out of ink.
M: I’m afraid I don’t have an
第22题: [单项选择]关于结核性胸腔积液的描述,以下不正确的是 A. 外观草黄色,偶呈血性 B. 比重>1.018 C. 粘蛋白定性试验阳性 D. 有核细胞数常>1.0×109/L,以淋巴细胞为主 E. 胸液涂片检查结核杆菌阳性率很高 参考答案:E 答案解析: 事实上结核性胸腔积液涂片结核杆菌的检出率极低,而不是阳性率很高。其他各项均为渗出液的各项条件;而白细胞计数>1.0×109/L,以淋巴细胞为优势是区别结核和其他感染或炎性