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计算题：已知石灰石含CaO52.5%，SiO21%，R=1.75，求有效CaO含量。

答案

参考答案：

有效CaO%=石灰石CaO%-烧结矿碱度×石灰石

SiO2%=52.5-1.75×1%

=50.75%

选择题

某企业是一家集体企事业，由于生产任务较多，未经劳动行政部门批准，要求职工每天超时工作，星期天也照常上班，职工每月累计加班高达120小时。长时间超负荷的工作对职工的身心健康造成极大伤害，侵犯了职工的合法权利。运用所学知识，上述材料中的这家集体企业主要侵犯了劳动者的[     ]

A、休息休假的权利单位

B、取得劳动报酬的权利

C、平等就业的权利

D、获得劳动安全卫生保护的权利

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填空题

B The Culture Debate in the US:Whose Culture Is This ,Anyway 美国的文化辩论：空间是谁的文化？
Part of the debate about culture revolves around issues of perspective and ownership. Within a nation such (1) the United States—a nation whose cultural heritage includes elements from every corner of the world (2) are a great many perspectives coexisting and intertwining in the cultural fabriC．When we all ask (3) as individuals, "what belongs to me, to my culture " we are rewarded with a spectacular variety of (4) ; in this way, different perspectives and ownership of different cultural traditions enriches everyone. But when we ask " (5) belongs to us, to our culture " we ask a much harder question. Do the people of the (6) States, or of any culturally complex human society, necessarily share common cultural elements If so, who gets (7) decide what those elements are
This debate is a crucial one in many cultures throughout the world (8) . In the US, the debate promises to impact the way we educate our children—that is, (9) manner and shape in which culture reproduces itself—and the way we write our laws. In (10) countries, equally crucial issues are at stake.
For many people, what is at stake is the character (11) US national identity. Hirsch argues that this identity needs to become less culturally fragmented; others, like Walker, (12) that the national character gets its strength from cultural diversity, from the freedom (at home and in (13) ) to celebrate, honor, and reproduce different cultural traditions. Those who take this latter view follow the reasoning (14) Shweder, arguing that we need to accept that there are multiple valid cultural perspectives and that two (15) perspectives can both be valid even though they might contradict one another.
Recognize that the position you (16) in this debate about culture—whatever position you take—is a political one with implications (17) what we should value, what we should praise, what we should accept, what we should teach. When (18) reflect on this debate, when you contribute your own voice to the discussion, try to be (19) of the implications that follow from your position. When you listen to the voices of others, try to (20) with awareness, deciding for yourself what is at stake and how their positions relate to your own.

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