对于寿命期相同的互斥方案，错误选用的比较方法是( )。A．净现值法 B．年值法 C

与楔形不同的是，旗形形成所花费的时间较长，一般需要2周以上方可完成。（）

_____did she get this information?

A．Whom

B．Who

C．Where

D．What

属于沙眼Ⅱ期的是（）。

A.上睑结膜出现滤泡，轻微上皮下角膜混浊、弥漫点状角膜炎和上方细小角膜血管翳

B.上睑结膜 * * 与滤泡并存，上穹隆结膜模糊不清，有角膜血管翳

C.上睑结膜自瘢痕开始出现至大部分变为瘢痕。仅留少许活动病变

D. * * 增生，滤泡模糊。可以见到滤泡坏死和出现上方表浅角膜血管翳和上皮下浸润。瘢痕不明显

E.上睑结膜活动性病变完全消失，代之以瘢痕，无传染性

业主方和项目参与各方都有各自的项目管理任务及其管理职能分工。管理职能由提出问题、筹划、决策、执行、检查等组成。下列选项中，符合管理职能内涵的表达方式的有（）。

A.明确加快进度的多种可能方案 

B.明确安全生产管理由谁负责 

C.发现实际成本项目超出了预算 

D.执行进度控制计划 

E.从多种方案中选定一个拟执行的方案

Many in the Middle East have difficulty in adjusting themselves to the new situation created by the departure of the imperial powers. For the first time in almost 200 years, the rulers and people of the Middle East have to accept the final responsibility for their own affairs, to make their own mistakes and to accept the consequences. This is difficult to internalize, even to perceive, after so long a period. For the entire lifetimes of those who formulate and conduct policy at the present time and of their predecessors for many generations, vital decisions were made elsewhere, ultimate control lay elsewhere, and the principal task of statesmanship and diplomacy was as far as possible to avoid or reduce the dangers of this situation and to exploit such opportunities as it might from time to time offer. It is very difficult to forsake the habits not just of a lifetime but of a whole era of history. The difficulty is much greater when alien cultural, social and economic preeminence continues and even increases, despite the ending of alien political and military domination.

Military and to a growing extent political intervention by the West has indeed ended, but the impact of its science and culture, its technology, amenities and institutions remains and even increases. As in other parts of the non-Western world, this impact has been and will be enormous. In these circumstances, it is natural that Middle Easterners should continue to assume—and proceed on the assumption—that real responsibility and decision still lie elsewhere. In its crudest form, this belief leads to wild and strange conspiracy theories directed against those whom they regard as their enemies—Israel, and more generally the Jews, the United States, and more generally the West. No theory is too absurd to be asserted or too preposterous to be widely and instantly believed. Even among more responsible statesmen and analysts, a similar belief in alien power, albeit in a less crude form, often seems to guide both analysis and policy. Some even go so far as to invite outside intervention, presumable in the belief that only outside powers have the capacity to make and enforce decisions. A case in point is the constant appeal to the United States to involve itself in the Arab Israel conflict, oddly coupled with the repeated accusation of "American imperialism. "

This state of mind is likely to continue for some time, with appeals for support or even intervention to the United States, to Russia and even to the European Union. In time, no doubt, Middle Eastern governments and people will learn how to use this window of opportunity to the best advantage—that is, of course, if the window remains open long enough.

The word "this" in the third sentence of Paragraph 1 refers to（）

A. the departure of the imperial powers

B. the final responsibility of the Middle Eastern countries for their own affairs

C.the consequence created by the departure of the imperial powers

D. the fact that the Middle Eastern countries have to be responsible for their own affairs