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问题 单项选择题 A1/A2型题

女性，43岁。原因不明肝区疼痛伴发热7天。CT扫描发现肝脏低密度占位，其内可见气泡影，增强后有环状强化。诊断首先要考虑（）。

A.原发型肝癌

B.肝血管瘤

C.肝脓肿

D.肝转移瘤

E.肝囊肿

答案

参考答案：C

多项选择题

传统上，国际汇率制度有两种基本类型，它们是( )。

A．盯住汇率制度

B．浮动汇率制度

C．固定汇率制度

D．联合汇率制度

E．爬行盯住汇率制度
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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.

（69）处填（）。

A．power

B．rights

C．authorized

D．common
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