受热物体，只要不遇明火，就不会自燃。( )

已知a+b=5，ab=3，求：①a2+b2；②a-b；③a2-b2；④ a b + b a ；⑤a2-ab+b2．

某项计量指标仅以过高为异常，且资料呈偏态分布，则其95%参考值范围为

A．＜P₉₅

B．＞P₅

C．＜P_97.5

D．P_2.5～P_97.5

E．P₅～P₉₅

HARQ的信息承载在哪个信道上（）

A.PDCCH

B.PDSCH

C.PHICH

D.PCFICH

(四)

南方电子电气有限公司(建设单位)新建液晶屏(LCD)生产车间，其生产线由建设单位从国外订购，A施工单位承包安装。A施工单位进场时，生产车间的土建工程和机电配套工程(B施工单位承建)已基本完工。A施工单位按合同工期要求，与建设单位、生产线供应商和B施工单位洽谈，编制了LCD生产线安装网络计划工作的逻辑关系及工作持续时间表(见下表)。

LCD生产线安装网络计划工作逻辑关系及持续时间表
工作内容	工作代号	紧前工作	持续时间(天)
进场施工准备	A	—	20
开工后生产线进场	B	—	60
基础检测验收	C	A	10
配电装置及线路安装	D	A	30
LCD生产线组装固定	E	B、C	75
配套设备及电气控制系统安装	F	B、C	40
LCD生产线试车调整	G	D、E	30
电气控制系统测试	H	D、E、F	25
联动调试、试运行、验收	I	G、H	15

A施工单位在设备基础检验时，发现少量基础与安装施工图不符，B施工单位进行了整改，重新浇捣了混凝土基础，经检验合格，但影响了工期，使基础检验持续时间为30天。
LCD生产线的安装正值夏季，由于台风影响航运，使LCD生产线设备到达安装现场比计划晚7天。A施工单位按照建设单位的要求，调整进度计划，仍按合同规定的工期完成。

如按合同工期完成，A施工单位如何进行工期调整

It was the best of times or, depending on your political and philosophical outlook, one of the foulest and most depraved. Rebellion seemed to be leaping from city to city, continent to continent, by some fiery process of contagion. Radical students filled the streets of Mexico city, Berlin, Tokyo, Prague. In the U. S. , Chicago swirled into near anarchy as cops battled antiwar demonstrators gathered at the Democratic Convention. And everywhere from Amsterdam to Haight-Ashbury, a generation was getting high, acting up.

So, clearly, it was the year from hell--a collective "dive into extensive social and personal dysfunction," as the Wall Street Journal editorialized recently. Or, depending again on your outlook, a global breakthrough for the human spirit. On this, the 25th anniversary of 1968, probably the only thing we can all agree on is that ’68 marks the beginning of the "culture wars," which have divided America ever since.

Both the sides of the "culture wars" of the ’80s and ’90s took form in the critical year of’68. The key issues are different now--abortion and gay rights, for example, as opposed to Vietnam and racism--but the underlying themes still echo the clashes of ’68: Diversity vs. conformity, tradition vs. iconoclasm, self-expression vs. deference to norms. "Question authority," in other words, vs. "Father knows best."

The 25th anniversary of ’68 is a good time to reflect, calmly and philosophically, on these deep, underlying choices. On one hand we know that anti-authoritarianism for its own sake easily degenerates into a rude and unfocused defiance: Revolution, as Abbie Hoffman put it, "for the hell of it." Certainly ’68 had its wretched excesses as well as its moments of glory: the personal tragedy of lives undone by drugs and sex, the heavy cost of riots and destruction. One might easily conclude that the ancient rules and hierarchies are there for a reason--they’re worked, more or less, for untold millenniums, so there’s no point in changing them now.

But it’s also true that what "worked" for thousands of years may not be the best way of doing things. Democracy, after all, was onee a far-out, subversive notion, condemned by kings and priests. In our own country, it took all kinds of hell-raising, including a war, to get across the simple notion that no person is morally entitled to own another. One generation’s hallowed tradition--slavery, or the divine right of kings--may be another generation’s object lesson in human folly.

’68 was one more awkward, stumbling, half-step forward in what Dutschke called the "long march" toward human freedom. Actually, it helped inspire the worldwide feminist movement.

To which of the following is the writer most likely to agree（）

A. A war brings with it nothing but destruction

B. It is wise to see the ’68 War into perspective

C. Revolution leaves a new generation acting up

D.Ancient rules are by all means reasonable