| Most animals have little connection
with animals of a different kind, unless they hunt them for food. Sometimes,
however, two kinds of animals come together in a partnership(伙伴关系) which does
good to both of them. You may have noticed some birds sitting on the backs of
sheep. This is not because they want a ride, but because they find easy food in
parasites(寄生虫) on sheep. The sheep allow the birds to do so because they remove
the cause of discomfort. So although they can manage without each other, they do
better together. Sometimes an animal has a plant partner. The relationship develops until the two partners cannot manage without each other. This is so in the corals (珊瑚) of the sea. In their skins they have tiny plants which act as "dustman", taking some of the waste products from the coral and giving in return oxygen which the animal ne A. they can eat its parasites B. they depend on the sheep for existence C. they enjoy travelling with the sheep D. they find the position most comfortable [单项选择]
Company Structure Most organisations have hierarchical or pyramidal structure, with one person or a group of people at the top, and an increasing number of people below them at each successive level. There is a clear line or chain of command running down the (21) All the people in the organisation know what decisions they are able to (22) , who their superior is. Some people in an organisation have colleagues who help them: for example, there might be an Assistant to the Marketing Manager. This is known as a staff position: its holder has no line (23) , and is not integrated into the chain of command, unlike, for example, the Assistant Marketing Manager, who is number two in the marketing department. Yet the activities of most companies are too complicated to be (24) in a single hierarchy. Shortly before the First World War, the French industrialist Henry Fayol organised his coal-mining business A. mission B. plan C. functions D. instructions 我来回答: 提交
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