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问题 单项选择题

正常人血清白蛋白与球蛋白的比例是

A．1.0～1.5:1.0
B．1.0:1.0～1.50
C．1.5～2.5:1.0
D．1.0:1.5～2.5
E．1.0:1.0

答案

参考答案：C

解析：在肝功能正常情况下，白蛋白要高于球蛋白，A/G正常值范围在1.5～2.5之间波动。

单项选择题

女性，20岁，反复发作喘息、呼吸困难、咳嗽2年。体检：双肺散在哮鸣音，心脏无异常。下列检查结果中有助于明确诊断的是( )。

A．最大呼气流量显著降低

B．一秒钟用力呼气容积降低

C．最大呼气中段流量降低

D．支气管舒张试验阳性

E．X线胸片显示肺纹理稍多
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单项选择题

With hundreds of millions of electronic (161) taking place daily, businesses and organizations have a p incentive to protect the (162) of the data exchanged in this manner, and to positively ensure the (163) of those involved in the transactions. This has led to an industry-wide quest for better, more secure methods for controlling IT operations, and for deploying p security mechanisms deeply and broadly throughout networked infrastructures and client devices. One of the more successful concepts to engage the imaginations of the security community has been the development of standards-based security (164 ) that can be incorporated in the hardware design of client computers. The principle of encapsulating core security capabilities in (165 ) and integrating security provisions at the deepest levels of the machine operation has significant benefits for both users and those responsible for securing IT operations.

A．identities

B．homogeneities

C．creations

D．operations
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