砂的含泥量试验最少取样数量是（）。A.4000g B.4500g C.4400g

患者女，52岁，因“上腹部胀痛2天”来诊。急诊查血淀粉酶865U/L，拟诊急性胰腺炎收入院，入院后第2天即出现呼吸困难。查体：呼吸48次/分，血压103/70mmHg（1mmHg=0.133kPa），脉搏125次/分，口唇发绀，两肺布满哮鸣音。胸部X线片：双肺弥漫性渗出影。入院后紧急进行气管插管机械辅助通气。治疗过程中，患者突然出现发绀加重，血氧饱和度下降，呼吸机报警提示气道压增高。

此时的治疗应包括（）（提示查体发现患者右侧呼吸音消失，胸廓隆起，有明显的皮下气肿。）

A.胸腔闭式引流

B.增加吸氧浓度

C.提高呼吸机压力控制水平

D.降低呼吸机压力支持水平

E.提高呼气末正压

F.降低呼气末正压

G.增加呼吸频率

H.改为容量控制通气模式

《公司法》完善了对有限责任公司股东知情权的规定。股东有权查阅、复制( )等。

A．公司章程

B．股东会会议记录

C．董事会会议决议

D．监事会会议决议

同一组无侧限抗压强度试验，大试件的变异系数Cv（％）应符合（），方为有效。

A.≤25％

B.≤30％

C.≤15％

D.≤10％

Most of the people who appear most often and most gloriously in the history books are great conquerors and generals and soldiers, whereas the people who really helped civilization forward are often never mentioned at all. We do not know who first set a broken leg, or launched a seaworthy boat, or calculated the length of the year, or manured a field; but we know all about the killers and destroyers. People think a great deal of them, so much so that on all the highest pillars in the great cities of the world you will find the figure of a conqueror or a general or a soldier. And I think most people believe that the greatest countries are those that have beaten in battle the greatest number of other countries and ruled over them as conquerors. It is just possible they are, but they are not the most civilized. Animals fight; so do savages; hence to be good at fighting is to be good in the way in which an animal or a savage is good, but it is not to be civilized. Even being good at getting other people to fight for you and telling them how to do it most efficiently—this, after all, is what conquerors and generals have done—is not being civilized. People fight to settle quarrels. Fighting means killing, and civilized peoples ought to be able to find some way of settling their disputes other than by seeing which side can kill off the greater number of the other side, and then saying that that side which has killed most has won. And not only has won, but, because it has won, has been in the right. For that is what going to war means; it means saying that might is right.

That is what the story of mankind has on the whole been like. Even our own age has fought the two greatest wars in history, in which millions of people were killed or mutilated. And while today it is true that people do not fight and kill each other in the streets—while, that is to say, we have got to the stage of keeping the rules and behaving properly to each other in daily life—nations and countries have not learnt to do this yet, and still behave like savages.

But we must not expect too much. After all, the race of men has only just started. From the point of view of evolution, human beings are very young children indeed, babies, in fact, of a few months old. Scientists reckon that there has been life of some sort on the earth in the form of jellyfish and that kind of creature for about twelve hundred million years; but there have been men for only one million years, and there have been civilized men for about eight thousand years at the outside. These figures are difficult to grasp; so let us scale them down. Suppose that we reckon the whole past of living creatures on the earth as one hundred years; then the whole past of man works out at about one month, and during that month there have been civilizations for between seven and eight hours. So you see there has been little time to learn in, but there will be oceans of time in which to learn better. Taking man’s civilized past at about seven or eight hours, we may estimate his future, that is to say, the whole period between now and when the sun grows too cold to maintain life any longer on the earth, at about one hundred thousand years. Thus mankind is only at the beginning of its civilized life, and as I say, we must not expect too much. The past of man has been on the whole a pretty beastly business, a business of fighting and bullying and gorging and grabbing and hurting. We must not expect even civilized peoples not to have done these things. All we can ask is that they will sometimes have done something else.

It can be inferred from the last three sentences that（）

A. those who have fought and bullied cannot be considered civilized

B. there is nothing wrong if civilized people do some fighting and bullying

C. even civilized people have done some fighting and bullying

D. civilized people have never done any fighting and bullying

AutoCAD 2008的图形文件和样板文件的扩展名分别是（）。

A、dwg和bak

B、dwg和dwt

C、dwg和doc

D、doc和bmp