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简述汇率的标价方法及其特点。
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阅读以下关于ADSL宽带接入Internet的组网说明，根据要求回答问题1～5。 [说明] 某山区中学决定采用非对称数字用户线(ADSL)宽带接入Internet，以提高其行政办事效率，并要求能使内部30台计算机通过代理服务器访问Internet，其拓扑结构图如图2-25所示。电信部门分配给该中学的公网IP地址为202.117.12.36/30，DNS的IP地址为202.101.98.55；该中学内部网络使用的IP地址块为192.168.1.0/24。 [问题1] ADSL技术可以充分利用现有电话线网络，只要在用户端加装相关设备即可为用户提供服务。请从以下术语选择适当的编号，将图2-25拓扑结构中(1)～(4)空缺处的设备名称填写完整。 供选择的答案： A．程控交换机 B．普通二层交换机 C．用户端ADSL Modem D．ATU-C模块 E．局端ADSL Modem F．用户端滤波器 G．局端PS H．代理服务器
作为一个有良好药学职业道德的人的最低要求是( )
The first and smallest unit that can be discussed in relation to language is the word. In speaking, the choice of words is (31) the utmost importance. Proper selection will eliminate one source of (32) breakdown in the communication cycle. Too often, careless use of words (33) a meeting of the minds of the speaker and listener. The words used by the speaker may (34) unfavorable reactions in the listener (35) interfere with his comprehension; hence, the transmission-reception system breaks down. (36) , inaccurate or indefinite words may make (37) difficult for the listener to understand the (38) which is being transmitted to him. The speaker who does not have specific words in his working vocabulary may be (39) to explain or describe in a (40) that can be understood by his listeners.
On an average of six times a day, a doctor in Holland practices "active" euthanasia: intentionally administering a lethal (致死的) drug to a terminally ill patient who has asked to be relieved of suffering. Twenty times a day, life-prolonging treatment is withheld or withdrawn when there is no hope that it can effect an ultimate cure. "Active" euthanasia remains a crime on the Dutch statute books, punishable by 12 years in prison. But a series of court cases over the past 15 years has made it clear that a competent physician who carries it out will not be prosecuted. Euthanasia, often called "mercy killing", is a crime everywhere in Western Europe. But more and more doctors and nurses readily admit to practicing it, most often in the "passive" form of withholding or withdrawing treatment. The long simmering euthanasia issue has lately boiled over into a sometimes fierce public debate, with both sides claiming the mantle of ultimate righteousness. Those opposed to the practice see themselves upholding sacred principles of respect for life, while those in favor raise the banner of humane treatment. After years on the defensive, the advocates now seem to be gaining ground. Recent polls in Britain show that 72 percent of British subjects favor euthanasia in some circumstances. An astonishing 76 percent of respondents to a poll taken last year in France said they would like the law changed to decriminalize mercy killings. Euthanasia has been a topic of controversy in Europe since at least 1936, when a bill was introduced in the House of Lords that would have legalized mercy killing under very tightly supervised conditions. That bill failed, as have three others introduced in the House of Lords since then. Reasons for the latest surge of interest in euthanasia are not hard to find. Europeans, like Americans, are now living longer. Therefore, lingering chronic diseases have replaced critical illnesses as the primary cause of death. And the euthanasists argue that every human being should have the right to "die with dignity", by which they usually mean the right to escape the horrors of a painful or degrading hospitalization (住院治疗). Most experts believe that euthanasia will continue to be practiced no matter what the law says. Which of the following statements can not be found in the passage
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