鼻窦黏液囊肿形成的原因有（）。 A.鼻窦自然开口完全阻塞后致窦内分泌物潴留逐渐形成的

对上颌后堤区的描述，错误的是（）。

A.位于前后颤动线之间

B.宽约2～12mm，平均8.2mm

C.有利于义齿封闭

D.此区无弹性

E.有利于义齿固位

急性吗啡类中毒的特效解毒药是（）

A.氟马西尼（安易醒）

B.乙酰胺

C.纳洛酮

D.硫代硫酸钠

E.亚硝酸异戊酯

工程施工招标造价控制中，( )是控制工程造价的基础。

A．合同履行
B．规范投标报价
C．合同价格调整
D．合理设置工程招标项目造价控制目标

患者证见神疲乏力，形寒肢冷，小便短少，腰重足肿，舌质淡胖，苔薄白，脉沉迟而细。治疗最佳方剂是

A．金匮肾气丸

B．右归饮

C．四逆散

D．左归丸

E．济生肾气丸

The question of whether war is inevitable is one, which has concerned many of the world’s great writers. Before considering this question, it will be useful to introduce some related concepts. Conflict, defined as opposition among social entities directed against one another, is distinguished from competition, defined as opposition among social entities independently striving for something, which is in inadequate aupply. Competitors may not be aware of one another, while the parties to a conflict are. Conflict and competition are both categories of opposition, which has been defined as a process by which social entities function is the disservice of one another.

Opposition is thus contrasted with cooperation, the process by which social entities function in the service of one another. These definitions are necessary because it is important to emphasize that competition between individuals or groups in inevitable in a world of limited resources, but conflict is not. Conflict, nevertheless, is very likely to occur, and is probably an essential and desirable element of human societies.

Many authors have argued for the inevitability of war from the premise that in the struggle for existence among animal species, 0nly the fittest survive. In general, however, this struggle in nature is competition, not conflict. Social animals, such as monkeys and cattle, fight to win or maintain leadership of the group. The struggle for existence occurs not in such fights, but in the competition for limited feeding areas and for occupancy of areas free from meat-eating animals. Those who fail in this competition starve to death or become victims to other species. This struggle for existence does not resemble human war, but rather the competition of individuals for jobs, markets, and materials. The essence of the struggle is the competition for the necessities of life that are insufficient to satisfy all.

Among nations there is competition in developing resources, trades, skills, and a satisfactory way of life. The successful nations grow and prosper; the unsuccessful decline. While it is true that this competition may induce efforts to expand territory at the expense of others, and thus lead to conflict, it cannot be said that war-like conflict among nations is inevitable, although competition is.

The author indicates in the passage that conflict（）

A. is an inevitable struggle resulting from competition

B. reflects the struggle among social animals

C. is an opposition among individual social entities

D. can be avoided