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问题 单项选择题

在组织结构图中，矩形框表示工作部门中，上级工作部门对其直接下属工作部门的指令关系用 ( )表示。

A．单向指针

B．双向指针

C．单向箭线

D．双向箭线

答案

参考答案：C

单项选择题

患者，男，56岁，患肝病反复发作20余年，近日出现乏力、嗜睡、厌食、脾肿大、脾功能亢进、腹水，应首先考虑的诊断是（）。

A.急性肝炎

B.肝硬化

C.黑热病

D.门脉高压症

E.肝性脑病
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单项选择题

Most computer systems are (66) to two different groups of attacks: Insider attacks and outsider attacks. A system that is known to be (67) to an outsider attack by preventing (68) from outside can still be vulnerable to the insider attacks accomplished by abusive usage of (69) users. Detecting such abusive usage as well as attacks by outsides not only provides information on damage assessment, but also helps to prevent future attacks. These attacks are usually (70) by tools referred to as Intrusion Detection Systems.

（66）处填（）。

A．vulnerable

B．week

C．sensitively

D．helpless
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