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【单选题】
男,31岁,低热,发作性酱油色尿4个月。体检:巩膜,贫血面容,肝、脾不肿大,RBC2.5×10 12 /L,HGB60g/L,PLT110×10 9 /L,WBC6.5×10 9 /L,网织红细胞计数0.15,尿隐血试验阳性。 患者考虑诊断应为()
A.
自身免疫性溶血性贫血
B.
PNH
C.
缺铁性贫血
D.
海洋性贫血
E.
再生障碍性贫血
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举一反三
【单选题】下列各项企业财务管理目标中,能够同时考虑资金的时间价值和投资风险因素的是
A.
产值最大化
B.
利润最大化
C.
销量最大化
D.
企业价值最大化
【判断题】Suppose an influenza pandemic were to significantly decrease the population of a country. We would predict a decrease in the marginal product of land in that country
A.
正确
B.
错误
【单选题】Suppose country A produces two goods, good X and good Y. Production of good X involves an intensive use of highly skilled workers. However, good Y is a relatively capital-intensive good. If the countr...
A.
B.
C.
D.
D
【单选题】Suppose country A had been traditionally enjoying a comparative advantage in the production of good X. As a result most of the large firms manufacturing and exporting good X were concentrated in count...
A.
The firms in country A will expand production beyond the optimum point and will      experience an increase in per unit cost with a further increase in output.
B.
The demand for good X will increase substantially in country A in recent future.
C.
The firms in country A will lower the prices for their products.
D.
The input prices in country A are likely to increase significantly in the near future.
【单选题】北京时间2007年10月24日18点05分我国自主研制的第一个月球探测器——“嫦娥一号”卫星在西昌卫星发射中心顺利升空。11月26日上午,北京航天飞行控制中心举行隆重仪式,发布中国首次月球探测工程第一幅月面图象。中央、国务院总理为中国第一幅月面图像揭幕。完成下列小题: “嫦娥一号”卫星成为环月球卫星后,在离月球表面200公里高度的极地轨道绕月球飞行(注:极地轨道是指轨道经过月球...
A.
可最大限度地利用自然光
B.
有利于对月球全表面的拍摄和探测
C.
有利于向地球传回探月信息
D.
有利于卫星绕月运行轨道的稳定
【单选题】Suppose some country had an population of about 50 million, a labor-force participation rate of 60 percent, and an unemployment rate of 5 percent. How many people were unemployed?
A.
a. 1.425 million
B.
b. 1.5 million
C.
c. 2.5 million
D.
d.   5million
【单选题】根据《建筑工程建筑面积计算规范》(GB/T 50353--2005)规定,建筑物上下两错层户室共用的室内楼梯的建筑面积,应( )。
A.
选上一层的自然层计算
B.
按自然层计算
C.
选下一层的自然层计算
D.
按建筑层计算
【单选题】Suppose a country produces only bikes and clothing. The country achieves an efficient allocation of resources when (假设一个国家只生产自行车和服装。当时,国家实现了有效的资源配置——中文由在线翻译而来,仅供参考)
A.
it can't produce any more bikes unless it gives up clothing.除非放弃服装,否则不能生产任何自行车。
B.
it produces equal amount of bikes and clothes.它产生等量的自行车和衣服。
C.
the marginal social benefit of producing a bike equals the marginal social cost of producing a bike.生产自行车的边际社会效益等于生产自行车的边际社会成本。
D.
the prices charged for the goods are as low as possible.货物的价格尽可能低。
【单选题】预备党员预备期满,党组织认为需要继续考察和教育的,可以延长预备期,但不能超过()
A.
半年
B.
1年
C.
2年
D.
3年
【简答题】简述免疫学在医学实践中的应用。
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