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问题 单项选择题

哮喘的病机关键是

A．痰气搏结，壅阻气道，肺管挛急狭窄
B．肺肾气虚，气失摄纳
C．肺失宣肃，肺气上逆
D．胸阳不振，阴寒痰湿闭阻
E．卫表不和，肺失宣肃

答案

参考答案：A

单项选择题

为了屏蔽不同计算机系统对键盘输入解释的差异，Telnet引入了( )。

A．NVT

B．VPN

C．VLAN

D．VPI
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单项选择题

Leadership and management are both necessary on projects. One definition of managing is that it involves producing key results expected by stakeholders, whereas leaderships involves ______ .

A．establishing direction, aligning people, and motivating and inspiring others

B．getting things done through other people

C．using charismatic power to motivate others to be productive

D．using all types of power, as appropriate, as motivational tools
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