肾上腺素及其盐类药物中应检查的特殊杂质是A．游离水杨酸 B．酮体 C．对氨基苯甲酸

在普通培养基上生长不良，放入血清肉汤中培养生长的是（）

A.蜂房球菌

B.多杀性巴氏杆菌

C.布鲁氏杆菌

D.拟幼虫芽孢杆菌

E.猪痢短螺旋体

控制性详细规划是以( )为依据。

A．总体规划
B．规划设计与规划管理结合
C．规划的综合性研究
D．数据控制和图纸控制

阅读下面这首诗，回答问题。

注：开元二年（759），李白流放途中遇赦，回舟江陵，南游岳阳而作此诗。夏十二，李白朋友，排行十二。

1．诗人笔下的岳阳楼最突出的特点是什么？抒发了诗人的什么情感?

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2．判断第三联“云间连下榻，天上接行杯”所运用的艺术表现手法并做简要分析

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星形细胞瘤与脑梗塞的鉴别最有意义的是:

A．低密度

B．不增强

C．单脑叶分布

D．多脑叶分布

E．不按血管支配区分布

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 supply. 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 in 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 is 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, only 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 passage is probably intended to answer the question " （） " .

A. Is war inevitable

B. Why is there conflict and competition

C. Is conflict desirable

D. Can competition lead to conflict