求函数f(x)=的连续区间，并求极限．

给下列划线字注音。　

赫然（　　　）　矜持（　　　）　鄙薄（　　　）　藻荇（　　　）

下列各句中，没有语病的一项是（    ）（3分）

A．福建土楼具有防匪防盗、防震防潮、冬暖夏凉、生活方便，虽经百年风雨或战争硝烟，至今仍巍然屹立，享有“东方古城堡”之美誉。

B．三聚氰胺分子中含有氮元素，如果添加到奶粉中，就可以提高奶粉中蛋白质的检测数值，这是许多不良厂家用以牟取暴利的罪魁祸首。

C．美国“次贷”危机引发了全球经济动荡，进一步拉大了世界贫富的距离，导致一些发展中国家的经济严重衰退，贫困人口数量不断攀升。

D．要尽快培养出适应新世纪的人才，关键问题是先进的教育理念起着决定性的作用，它为我们指明了方向，引导学校教育不断向前发展。

《点型感温火灾探测器》（GB4716-2005）技术标准规定，探测器连接其他辅助设备时，与辅助设备之间的连接线断路和短路（）影响探测器的正常工作

A.应

B.不应

C.允许一定程度内

D.不一定

画组合体视图前为什么要进行形体分析？怎样运用形体分析画组合体视图？

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.