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患者，男，34岁，4天前施工时右下肢被石板砸伤，X线摄片，未见骨折，行清创缝合。现突然出现烦躁不安，伴恐惧感，大汗淋漓，自述右下肢伤处疼痛加重，胀裂感。体温38.5℃，脉搏128次／分，血压146/92mmHg，右小腿肿胀明显，大量浆液血性渗出物自切口渗出，皮肤表面呈大理石样花纹，渗出物有恶臭味。

本病可诊断为（）.

A.金葡菌感染败血症

B.厌氧性链球菌性蜂窝织炎

C.大肠杆菌性蜂窝织炎

D.梭状芽孢杆菌感染

E.变形杆菌感染

答案

参考答案：D

单项选择题

左边给定的是纸盒的外表面，下面哪一项不能由它折叠而成（）

A．A

B．B

C．C

D．D
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单项选择题

The history of African—Americans during the past 400 years is traditionally narrated (1) an ongoing struggle against (2) and indifference on the part of the American mainstream, and a struggle (3) as an upward movement is (4) toward ever more justice and opportunity.

Technology in and of (5) is not at fault; it’s much too simple to say that gunpowder or agricultural machinery or fiber optics (6) been the enemy of an (7) group of people. A certain machine is put (8) work in a certain way—the purpose (9) which it was designed. The people who design the machines are not intent on unleashing chaos; they are usually trying to (10) a task more quickly, cleanly, or cheaply, (11) the imperative of innovation and efficiency that has ruled Western civilization (12) the Renaissance.

Mastery of technology is second only (13) money as the true measure of accomplishment in this country, and it is very likely that by (14) this under-representation in the technological realm, and by not questioning and examining the folkways that have (15) it, blacks are allowing. (16) to be kept out of the mainstream once again. This time, however, they will be (17) from the greatest cash engine of the twenty-first century. Inner-city blacks in particular are in danger, and the beautiful suburbs (18) ring the decay of Hartford, shed the past and learn to exist without contemplating or encountering the tragedy of the inner city.

And blacks must change as well. The ways that (19) their ancestors through captivity and coming to freedom have begun to loose their utility. If blacks (20) to survive as full participants in this society, they have to understand what works now.

16（）

A.them

B.us

C.themselves

D.ourselves
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