第9题: [单项选择]Which group of people make some efforts to help pupils in elementary schools A. Teachers B. Researchers C. Grandparents D. Senior citizens 参考答案:D 答案解析:文章的倒数第五行有这么一句:“Thus,the small efforts of the man--the seniors--complement the large efforts of the f
第35题: [单项选择]患儿男,2.5岁,出生后3天发现血便,查血常规发现血小板为8×109/L,此后血小板波动于5~30×109/L。常患感冒,约每月1次,表现为发热、咳嗽、咳白色泡沫痰,偶于头面部出现红色斑丘疹,伴瘙痒。以下哪项实验室特征具有诊断价值() A. 抗核抗体阳性 B. 血小板体积减小 C. 骨髓巨核细胞减少 D. 血清IgG水平降低 E. 血清IgE水平升高 参考答案:B