问题 单项选择题

最可能的诊断是

A.急性早幼粒细胞白血病

B.急性粒细胞白血病

C.急性红白血病

D.急性单核细胞白血病

E.急性淋巴细胞白血病

答案

参考答案:E

解析:[解题思路] 急性白血病临床表现:①起病多急骤;②发热;③出血;④贫血;⑤组织漫润:a.骨骼症状,胸骨中下段压痛有助于诊断;b.肝脾淋巴结肿大,急淋多见;c.脑膜或中枢神经系统白血病以急淋多见,其他皮肤、齿龈、皋丸等浸润。实验室检查血常规外周细胞计数可增高,也可正常或减少,骨髓增生明显,原始细胞超过30%,红系或巨核细胞减少。过氧化酶染色及苏丹黑染色急淋白血病呈阴性,急非淋白血病呈阳性反应。故选E。

填空题
单项选择题

American Museum of Natural History is one of the largest natural and historic museums in the world and one of the main natural history research and education centres in the United States, set up in 1869 and located in the west of the Central Park, Manhattan District, New York. It (1) 7 hectares in its total area, (2) classical types of buildings. The (3) of ancient creatures and humanity is (4) the first place of all the museums in the world, (5) the representative samples from South America, Africa, Europe, Asia and Australia were collected, besides those from the (6) country, the United States.In the museum, there are five kinds of exhibits, including astronomy, mineralogy, human history, and animals in the (7) times and those in modern times. There are thirty-eight exhibition halls with different (8) from 500 to 1,500 square metres. Besides these, there is a Roosevelt Memorial Hall in (9) of President Roosevelt who supported the (10) of the museum, which is also used to have a special exhibition, showing the new important (11) on natural sciences and (12) affairs and social problems, and special topics connected closely with the life of the citizens. Besides this, it is also used for avocation (13) to have all kinds of scientific activities in the laboratories, centres of natural science and centres for citizens. There are more than 10 (14) research departments mainly(15) for collection of samples, research and work of publication.In the museum, there are (16) and sub-libraries of Aulspond ancient amniote, with about 300 thousand books and magazines (17) natural history, many of(18) are very valuable monographs for the first edition. It has published many expert books and magazines, and a large number of propaganda materials, (19) which are the two magazines, Natural History and Members of Museum that have the biggest (20) of their magazines.

3()

A.display

B.fossil

C.analysis

D.collection