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磨木浆

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男性患者,21岁,因骑自行车被刮倒,膝关节受伤,血肿达半月不消,检查结果如下:血小板74×109/L,白细胞4.2×109/L,红细胞4.1×1012/L。该患者最可能的诊断是()。

A. 特发性血小板减少性紫癜
B. 真性红细胞增多症
C. 骨髓纤维化
D. 慢性粒细胞白血病
E. 淀粉样变性

1岁9个月患儿,至今不会独立行走,智力发育落后于同龄儿。查体:眼距增宽,鼻梁平,腭弓高,舌常伸口外,小指向内侧弯曲,通贯掌。面部无水肿,皮肤细嫩。无异常气味。哪一项不常见()

A. 免疫功能低下
B. 性发育延迟
C. 骨龄落后
D. 先天性肾病
E. 先天性心脏病

男,3岁。右腹股沟部有一小包块1年余,平时平卧后可缩小,此时平卧后包块不缩小且有触痛。查体:右侧阴囊肿胀,内可触及肿块。若患儿在术中发现疝内容物系小肠,且肠管发黑,应如何处理()

A. 坏死肠管外置术
B. 坏死肠段切除肠吻合复位后行疝囊高位结扎术
C. 切开疝环,还纳肠管后行Bassini修补术
D. 肠切除术后行McVay修补术
E. 剖腹行肠切除吻合术

An internet is a combination of networks connected by (1). When a datagram goes from a source to a (2), it will probably pass many (3) until it reaches the router attached to the destination network. A router receives a (4) from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet? The decision is based on optimization: Which of the available (5) is the optimum pathway?空白(4)处应选择()

A. destination
B. resource
C. packet
D. source

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