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问题 选择题

图为不同国家人口增长模式示意图，读图并结合所学知识，回答27—28题。

小题1:图中与目前我国人口增长模式相似的是

A．甲

B．乙

C．丙

D．丁小题2:图中丁国将面临的人口问题是

A．人口老龄化严重、社会负担重

B．少年儿童比重大、失业率高

C．人口总数少、自然增长率高

D．人口数量多、劳动力过剩

答案

小题1:C

小题2:A

本题考查人口增长。

小题1:我国的人口增长属于现代型，但丁出现人口负增长，不符合我国人口增长情况。故选择丙；

小题2:丁反映人口增长缓慢，呈现负增长，故可能面临老龄化问题，则劳动力不足，社会、家庭养老压力大；选A项。

多项选择题

与吸烟直接相关的肺部疾病包括()

A．肺癌

B．支气管扩张症

C．肺气肿

D．慢性支气管炎

E．肺源性心脏病
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单项选择题

To compete in today’s fast-paced competitive environment, organizations are increasingly allowing contractors, partners, visitors and guests to access their internal enterprise networks. These users may connect to the network through wired ports in conference rooms or offices, or via wireless access points. In allowing this open access for third parties, LANs become (171) . Third parties can introduce risk in a variety of ways from connecting with an infected laptop to unauthorized access of network resources to (172) activity. For many organizations, however, the operational complexity and costs to ensure safe third party network access have been prohibitive. Fifty-two percent of surveyed CISOs state that they currently use a moat and castle’s security approach, and admit that defenses inside the perimeter are weak. Threats from internal users are also increasingly a cause for security concerns. Employees with malicious intent can launch (173) of service attacks or steal (174) information by snooping the network. As they access the corporate network, mobile and remote users inadvertently can infect the network with (175) and worms acquired from unprotected public networks. Hackers masquerading as internal users can take advantage of weak internal security to gain access to confidential information.

（172）是（）

A.venomous

B.malicious

C.felonious

D.villainous
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