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[问题3] ADSL采用 (6) 调制方式通过双绞线向用户提供宽带业务、交互式数据业务和普通电话服务的接入技术。ADSL主要有 (7) 和 (8) 两种地址分配方式。由试题中所提供的信息以及图2-25所示的网络拓扑结构可知，该山区中学ADSL接入因特网的方式是 (9) 。影响ADSL传输速率提高的两个主要因素是 (10) 和线路质量。
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Thirty-one million Americans are over 60 years of age, and twenty-nine million of them are healthy, busy, productive citizens. By the year 2030, one in every five people in the United States will be over 60. Elderly people are members of the fastest-growing minority in this country. Many call this the "graying of America". In 1973, a group called the "Gray Panthers" was organized. This group is made up of young and old citizens. They are trying to deal with the special problems of growing old in America. The Gray Panthers know that many elderly people have health problems; some cannot walk well, others cannot see or hear well. Some have financial problems; prices are going up so fast that the elderly can’t afford the food, clothing, and housing they need. Some old people are afraid and have safety problems. Others have emotional problems. Many elderly are lonely because of the death of a husband or a wife. The Gray Panthers know another fact, too. Elderly people want to be as independent as possible. So, the Gray Panthers are looking for ways to solve the special problems of the elderly. The president of the Gray Panthers is Maggie Kuhn, an active woman in her late 70s. She travels across the United States, educating both young and old about the concerns of elders. One of the problems she talks about is where and how elders live. She says that Americans do not encourage elders to live with younger people. As far as Maggie Kuhn is concerned, only elders who need constant medical care should be in nursing homes. Maggie Kuhn knows that elders need education, too. She spends lots of time talking to groups of older Americans. She encourages them to continue to live in their own houses if it is possible. She also tells them that it is important to live with younger people and to have children around them. This helps elders to stay young at heart. What health problems do many elderly have
实际货币需求是指名义货币需求在扣除了______因素之后的实际货币购买力，它等于名义需求除以物价水平，即Md/P。
[问题3] 在图2-18中，为了防止ARP木马导致无法访问Internet或网络不稳定现象，可以采用如下命令静态绑定网关的MAC地址。 C:\＞arp (8) (9) (10)
将《药品经营企业许可证》和执业药师证书悬挂在醒目、易见的地方的企业是 ( )
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