旅游产品购买者在收集旅游产品有关信息的基础上,选择、购买、消费和评估旅游产品过程称为_________。
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轴心受拉构件开裂后,裂缝间钢筋应变(应力)分布不均匀,其分布特点是:_________。
实现"九五"和2010年的奋斗目标,关键是实行两个具有全局意义的根本性转变,即()
After 1945 both A(America scholarship) and a resurgence of Marxist thought increasingly penetrated European sociology, B(which expanded )considerably. To a growing extent in both the United States and Western Europe, C(the three dominating figures) of Marx, Durkheim, and Weber were recognized as the preeminent classical thinkers of the sociological tradition. D(Their work continued) to influence contemporary sociologists.