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问题 单项选择题

患者，男，13岁，1个月前右肘前方刀刺伤，经清创缝合，创口愈合，但右手逐渐呈猿手畸形，不能握手写字。

查体时可发现

A．尺侧一指半皮肤感觉消失

B．拇指对掌功能障碍

C．手指夹纸试验阳性

D．掌指关节指间关节被动弯曲障碍

E．1～5指主动屈曲障碍

答案

参考答案：B

解析：拇指与小指不能对掌是正中神经损伤诊治的要点之一。

选择题

海水淡化可采用膜分离技术．如图所示，对淡化膜右侧的海水加压，水分子可以透过淡化膜进入左侧淡水池，而海水中的各种离子不能通过淡化膜，从而得到淡水．对加压右侧海水成分变化进行分析，正确的是（　　）

A．溶质质量分数减少

B．溶剂质量减少

C．溶液质量不变

D．溶质质量增加
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单项选择题

Microsoft’s COM is a software architecture that allows applications to be built from binary software components. COM is the underlying (48) that forms the foundation for higher-level software services, like those provided by OLE. COM defines a binary standard for function calling between components, a way for components to dynamically discover the interfaces implemented by other components, and a mechanism to identify components and their interfaces uniquely.

OLE is a compound (49) standard developed by Microsoft. OLE makes it possible to create (50) with one application and link or embed them in a second application. Embedded objects retain their original format and (51) to the application that created them. Support for OLE is built into the Windows and MacOS Operating Systems. A (52) compound document standard developed mainly by Apple and IBM is called OpenDoc.

49（）

A.database 

B.document 

C.graphic 

D.text
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