《浴后的狄安娜》属于哪个时期的作品？（）A、浪漫主义 B、文艺复兴 C、洛可可 D、巴洛克

Al及其化合物在工业上有极其广泛的用途，

（1）焊接钢轨时用Al冶炼Fe的反应方程式为      ；铝的化合物明矾可用于净水，其原理用离子方程式解释为           。

（2）硅藻遗骸中主要成分是Al₂O₃、SiO₂和Fe₂O₃。从中获取Al（OH）₃的过程如下：

步骤I：取适量硅藻遗骸用70%H₂SO₄浸泡；

步骤II：向上述浸泡液中加入过量NaOH并过滤；

步骤III：向上述滤液中通入过量CO₂过滤得到Al（OH）₃。

①用70%H₂SO₄浸取硅藻遗骸的目的是        。

②步骤II中涉及铝元素的离子方程式为      ；

③步骤III中能否用HCl代替CO₂？     （填“能”或“不能”）；该步骤所得滤液中存在的电荷守恒式为       ；向该滤液中滴加少量NaOH溶液，则    填（“变大”、“变小”或“不变”）

（3）Al（OH）₃可用作阻热材料，试从Al（OH）₃的化学性质角度分析其原因        。

阅读下列材料，回答问题。

材料一：……很多人认为这种制度已经成为经济发展和国家生存的障碍。……为了保持俄罗斯的大国地位，沙皇政府着手开始了一项改革计划。……社会改革为政府发起的工业化进程铺平了道路，使俄罗斯社会在十九世纪最后十年发生转型。

材料二：……日本的新统治者致力于日本社会的转型，以获得同外国势力在政治和军事上的平等地位。……变革使日本成为东亚的政治、军亨和经济强国……明治政府的首要目标是强化中央集权……——以上两则材料均摘自杰里·齐格勒（新全球史）（第三版）下

请回答：

（1）材料一中“这种制度”指的是什么？材料一中“社会改革”指的是俄国历史上的什么事件？

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（2）材料二中“变革”指的是什么历史事件？为了实现材料二中的“首要目标”，日本政府采取了什么措施？

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（3）综合以上材料，结合所学知识，分析这两次改革对这两国的共同作用。

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超声波疗法中连续超声波固定法的治疗剂量是（）

A.0.1～0.5W/cm²

B.0.5～1.0W/cm²

C.1.0～1.4W/cm²

D.1.5～2.0W/cm²

E.2.0～2.5W/cm²

Some consumer researchers distinguish (1) "rational" motives and "emotional" (or "non-rational") motives. They use the term "rationality" (2) the traditional economic sense that assumes (3) consumers behave rationally when they carefully consider all alternatives (4) choose those that give them the greatest utility (i.e., satisfaction). (5) a marketing context, the term "rationality" implies that the consumer selects goods based (6) totally objective criteria, such (7) size, weight, price, and so on. "Emotional" motives imply the selection of goods (8) to personal or subjective criteria—the desire (9) individuality, pride, fear, affection or status.
The assumption underlying this distinction is (10) subjective or emotional criteria do not maximize utility or satisfaction. (11) , it is reasonable to assume that consumers always attempt to select alternatives that, (12) their view, serve to maximize satisfaction. Obviously, the assessment of satisfaction is a very personal process, based (13) the individual’s own needs as (14) as on past behavioral, social, and learning experiences. What may appear (15) irrational to an outside observer may be perfectly rational (16) the context of the consumer’s own psychological field. For example, a product purchased to enhance one’s self-image (such as a fragrance) is a perfectly rational form of consumer behavior. (17) behavior did not appear rational to the person who undertakes it (18) the time that it is undertaken, obviously he or she would not do it. (19) the distinction between rational and emotional motives does not appear to be warranted.
Some researchers go so far (20) to suggest that emphasis (21) "needs" obscures the rational, or conscious, nature of most consumer motivation. They claim that consumers act consciously (22) maximize their gains and minimize their losses; that they act not (23) subconscious drives but from rational preferences, (24) what they perceive to be (25) their own best interests.

光缆通信工程概、预算的编制必须按照邮电部（）号文件发布的《通信建设工程概算、预算编制办法》有关规定编制。