[多选题]无头疽的西医学讨论范围包括( )
A.四肢感染
B.化脓性骨髓炎
C.化脓性关节炎
D.化脓性淋巴结炎
E.全身化脓性感染

Text 4 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 that 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,
A. Is war inevitable
B. Why is there conflict and competition
C. Is conflict desirable
D. Can competition lead to conflict

喜马拉雅山是目前地球上最高的山脉。其顶峰珠穆朗玛峰高达8844.43米，堪称世界之最。 
近半个世纪以来，地质学家对喜马拉雅山进行了研究，特别是近20年来世界各国学者纷纷对青藏高原进行实地勘测，弄清了喜马拉雅山脉的来龙去脉。科学家们从喜马拉雅山的原层海相沉积层中找到了鱼龙、三叶虫、珊瑚、海藻等古海洋生物的化石标本，从而证明：早在4000万到5000万年前，喜马拉雅山脉所处地区是一片湛蓝的大海。 
众所周知，地球最上层约不到100公里的厚度是一层带有弹性的坚硬岩石，叫做岩石层，岩石层可以发生脆性断裂，形成为数不多的板块，板块之间可以作相对运动。根据板块大地构造假说，科学家们将全球岩石分为6个大板块，即欧亚板块、美洲板块、非洲板块、太平洋板块、印澳板块和南极板块。喜马拉雅山脉的形成就是由于欧亚板块和印澳板块的互相碰撞，使得沉积在海中的巨厚沉积岩褶曲隆起所致。这样古海便渐渐消失，代之以高耸入云的山脉。 
科学家们经过测量，发现印澳板块至今仍在向北漂移，致使喜马拉雅山脉继续不断升高。近万年来，喜马拉雅山脉升高了500米，即以每年5厘米的速度在上升。 
一些地质学家认为，地球上的山脉是不会超过万米的。他们曾用生活中的一个例子作解释。 
（①）我们用雪白细嫩的豆腐来“叠罗汉”，（①）不需叠上几层，最底层的豆腐必将由于承受不了其上的压力而最终“垮台”。这个例子同样适用于山脉的升高。因为山脉的升高也像是“叠罗汉”，只不过是用泥土、岩石在不断堆积而已。在山体不断抬升之际，山底所承受的压力也是相应增大，一旦达到极限，偌大的山体就会像豆腐那样散架崩塌。经过推算，科学家们认为这个极限负荷是当山脉上升到10000米时的负荷。这一假说同样证明了地球上至今没有万米高山的原因。然而，喜马拉雅山脉还在不断上升，（②）上升速度仍保持每年5厘米不变，（②）不用25000年，高度将超过万米。到那时，喜马拉雅山脉是散架崩塌，还是继续高耸地球上，可以说至今还是一个谜。