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B型题 终板电位的属性是（）
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阅读下文，回答第49～50题。随着人们对信息需求的日益增长，许多国家都在大力开发可视图文信息系统。这种系统把用户终端（计算机和电话机）通过现有的公用电信网与图文信息中心计算机的数据库连接起来，进行数据通信，向公众开放信息服务，使信息资源在最大范围内实现共享，这个系统亦称为可视数据系统。用户在家中只要通过操纵终端设备，就可以方便地向图文信息中心检索所需要的各种可视图文信息。各个用户可在电视机屏幕前分别与图文信息中心的计算机“对话”，而不只是被动地接收信息。这种可以进行人机对话的信息系统又称为交互（交互就是有问题有答案）可视信息系统。它是信息社会中一种比较理想的通信手段。这种可视信息系统自从1979年问世以来，至今已普及到几十个国家和地区，我国也已开通了可视图文通信业务。在可视图文系统中，用户与电视节目中心数据库或图像库直接通信，成为声音、图像综合以及娱乐、教育、信息一体化的通信手段。它也是实现办公自动化和家庭自动化的重要工具。交互电视信息系统使有线电视可供选择的频道增加到一二百个，而且各家庭（个人）同发射台可以进行双向通信联络，用户不仅可以点播节目，还可以参与电视节目的制作。可视图文系统已经使人们的生活发生了一系列的改变。它给教学活动、生产管理等带来极大的方便。可视图文系统最有效的领域要算是购物和预约订货了。顾客不出家门就可通过可视图文终端进行购物和款项的支付结算。 可视图文信息系统是指（）。
B型题 肱二头肌反射属于（）
一段时间以来，国产手机在国内市场的占有率逐渐减小。研究发现，国外手机公司的手机广告比国内的广告更吸引人。因此，国产手机生产商需要加大广告投入，以增加市场占有率。 以下哪项如果为真，将严重地弱化上述的论证？( )
By 1830 the former Spanish and Portuguese colonies had become independent nations. The roughly 20 million (1) of these nations loved (2) to the future. Born in the crisis of the old regime and Iberian Colonialism, many of the leaders of independence (3) the ideals of representative government, careers (4) to talent, freedom of commerce and trade, the (5) to private property, and a belief in the individual as the basis of society. (6) there was a belief that the new nations should be sovereign and independent states, large enough to be economically viable and integrated by a (7) set of laws.On the issue of (8) of religion and the position of the church, (9) , there was less agreement (10) the leadership Roman Catholicism had been the state religion and the only one (11) by the Spanish crown. (12) most leaders sought to maintain Catholicism (13) the official religion of the new states, some sought to end the (14) of other faiths. The defense of the Church became a rallying (15) for the conservative forces.The ideals of the early leaders of independence were often egalitarian, valuing equality of everything. Bolivar had received aid from Haiti and had (16) in return to abolish slavery in the areas he liberated. By 1854 slavery had been abolished everywhere except Spain’s (17) colonies. Early premise to end Indian tribute and taxes on people of mixed origin came much (18) because the new nations still needed the revenue such policies (19) Egalitarian sentiments were often tempered by fears that the mass of the population was (20) self-rule and democracy. Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1.20（）
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