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阅读下面的短文,文中有15处空白,每处空白给出4个选项,请根据短文的内容从4个选项中选择1个最佳答案。 The American Family In the American family the husband and wife usually share important decision making. When the children are (51) enough, they take part as well. Foreigners are often surprised by the permissiveness(宽容) of American parents. The old rule that "children should be seen and not heard" is rarely (52) , and children are often allowed to do (53) they wish without strict control of their parents. The father seldom expects his children to listen to him (54) question, and children are encouraged to be (55) at an early age. Some people believe that American parents carry this freedom (56) far. Others think that a strong father image would not (57) the American values of equality and independence. Because Americans emphasize the importance of independence, young people are expected to (58) their parental families by the time they have (59) their late teens or early twenties. Indeed, not to do so is often regarded as a (60) , a kind of weak dependence. This pattern of independence often results in serious (61) for the aging parents of a small family. The average American is expected to live (62) the age of 70. The job-retirement age is (63) 65. The children have left home, married, and (64) their own households. At least 20 percent of all people over 65 do not have enough retirement incomes. (65) the major problem of many elderly couples is not economic. They feel useless and lonely with neither an occupation nor a close family group.

A. too
B. almost
C. nearly
D. so

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阅读下面短文,回答下列五道题。加拿大某公司建造了一座示范厂,用酒精而不是用硫磺造纸浆。该公司董事长佩蒂说:“这是未来之路。用酒精制造纸浆意味着出现一种清洁、无污染的技术。”如果在小规模工业里取得成功的这项技术也能在正式规模的工厂里生产出较便宜的纸浆,它将对纸价产生影响,这项技术还能消除造纸工业常有的臭鸡蛋味______硫化氢的气味。该公司使用的这种工艺叫ALCELL(即酒精ALCOHOL和纤维素CELLULOSE的合成词),它使用酒精和水代替硫磺把木材分解成纸浆。这种工艺是加拿大在1972年发明的,以前从来没有实现商品化,但是这家公司希望它能使造纸工业发生彻底变革。佩蒂说:“建造一座新的纸浆厂要耗资10亿美元,而且它要求木材供应源源不断。如有 ALCELL工艺,只要耗资3.5亿美元就能建造一个工厂,并使工厂不停地运转,所需木材供应量较小。”他又说:“那意味着一个工厂一天生产350吨而不是1 000吨纸浆。”林业产品分析家邓肯森说:“从环境方面来说,它比较清洁,而且小型厂这个概念将会使建造新纸浆厂变得较容易。”这种工艺取得成功,它将能以较低的成本生产纸浆。 对于ALCELL工艺,佩蒂和邓肯森发表了各自的看法。下列对他俩看法的叙述,符合原文意思的一项是()。

A. 佩蒂认为该工艺能降低造纸成本,是一种无污染的技术,邓肯森对此持有相同的看法
B. 佩蒂认为该工艺清洁、无污染,降低了造纸成本,但邓肯森并不完全同意这种看法
C. 邓肯森认为该工艺容易掌握,利于建造新纸浆厂,但佩蒂并不完全同意这种看法
D. 邓肯森认为该工艺对造纸原料要求低,利于环境保护,佩蒂对此持有相同的看法

[说明] IPSec(Internet协议安全)是一个工业标准网络安全协议,为IP网络通信提供透明的安全服务,保护TCP/IP通信免遭窃听和篡改,可以有效抵御网络攻击,同时保持易用性。IPSec有两个基本目标:保护 IP数据包安全;为抵御网络攻击提供防护措施。以下是IPSec部分配置清单。 Cisco 3640 (config) # crygto isakmp policy 1 (1) Cisco 3640 (config-isakmp) # group 1 (2) Cisco 3640 (config-isakmp) # anthentication pre-share (3) Cisco 3640 (config-isalmap) # lifetime 3600 Cisco 3640 (config) # crypto isakmp key noIP4u address202.10.36.1 (4) Cisco 3640 (config) # access-list 130 permit ip 192.168.1.0 0.0.0.255 172.19.20.0 0.0.0.255 (5) Cisco 3640 (config) # crypto ipsec transform-set vpn1 ah-md5-hmac esp-des esp-md5-hmac (6) Cisco 3640 (config) # crypto map shortsec 60 ipsec-isakmp Cisco 3640 (config-crypto-map) # set peer 202.10.36.1 Cisco 3640 (config-crypto-map)# set ixansform-setvgnl (7) Cisco 3640 (config-crypto-map) # match address 130 Cisco 3640 (config) # interface s0 Cisco 3640 (config-if) # crypto real/shortsec (8) ...... 请解释上述标有下画线语句的含义。

Please __________ (将问题提出来)at the next meeting.

[说明] 计算机用户通常使用主机名来访问网络中的节点,而采用TCP/IP协议的网络是以IP地址来标记网络节点的,因此需要一种将主机名转换为IP地址的机制。在Linux系统中,可以使用多种技术来实现主机名和IP地址的转换。 下 图是采用DNS将主机名解析成一个IP地址过程的流程图。请选择恰当的内容填写在(4)、(5)、(6)空白处。 [*] A.产生一个指定下一域名服务器的响应,送给DNS客户 B.把名字请求转送给下一个域名服务器,进行递归求解,结果返回给DNS客户 C.将查询报文发往某域名服务器 D.利用Host表查询 E.查询失败

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