第3题: [单项选择]The price of crude oil futures in New York ______. A. dropped by 6% B. dropped by 42 dollars C. rose by 6% D. rose by 42 dollars 参考答案:C 答案解析:[听力原文]6-7
Crude oil futures in New York closed at an all-time high Tuesday, the first full day o
第17题: [单项选择]目前公认的在大肠癌诊断和术后监测方面有意义的肿瘤标记物是( ) A. CEA B. AFP C. CA19-9 D. PSA E. CA125 参考答案:A 答案解析:[解析] 大量统计资料表明,结、直肠病人的血清癌胚抗原(CEA)水平与Dukes分期呈正相关关系,CEA主要用于预测直肠癌的预后和监测复发。
第20题: [单项选择]Questions 22 to 25 are based on the conversation you have just heard. A. Because they are not news. B. Because they aren’t pleasant to read. C. Because most people don’t like to read about them. D. Because they are difficult to understand. 参考答案:B 答案解析:[听力原文] Why doesn’t the woman enjoy reading about disaster in the daily newspaper [答案详解] 目的原因题
第21题: [单项选择]慢性再生障碍性贫血() A. 尿中血红蛋白量增加 B. 血中网织红细胞增加 C. 血中原始和早幼白细胞明显增多 D. 血中中性杆状及晚幼粒细胞增多 E. 骨髓巨核细胞数减少 参考答案:E