第30题: [单项选择]男性,15岁,反复呕血、黑便,皮肤瘀斑1周,肝脾不大、血红蛋白60g/L,WBC6×109/L,血小板10×109/L。骨髓增生活跃,巨核细胞数增多,幼巨核细胞比例增多。 最可能的诊断是 A. 再生障碍性贫血 B.急性白血病 B. 血友病A C. 过敏性紫癜 D. 特发性血小板减少性紫癜 参考答案:E
A. its growing wealth B. the self-centeredness of individuals C. underestimating the impact of social changes D. the prejudice against women and minorities 参考答案:B 答案解析:第四段中的"With today's great mobility and with so many couples working,those bonds have been weakened,re