题型:单项选择题 A1/A2型题 患者男,病史2周,贫血伴周身出血点,浅表淋巴结不肿大,胸骨压痛(+),肝脏轻度肿大,外周血白细胞25×109/L,可见幼稚细胞,血小板50×109/L,血红蛋白40g/L,该患最可能诊断()A.败血症B.再生障碍性贫血C.过敏性紫癜D.急性白血病E.恶性淋巴瘤 查看答案
题型:选择题 His sister left home in 1998, and ________ since. [ ]A. had not been heard of B. has not been heard ofC. had not heard ofD. has not heard of 查看答案