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实施MRPⅡ三个主要阶段有()。
A.前期工作
B.系统平衡
C.决策工作
D.设备改造
E.实施
【参考答案】
A,C,E
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When a consumer finds that an item she or he bought is in faulty or in 【S1】______some other way does not live to the manufacturer's claim for it , the first 【S2】______step is to present the warranty or any other records which might help, at thestore of purchase. In most cases, this action will produce results. Moreover, 【S3】______if it does not, there are various means the consumer may use to gain satisfaction.A simple and common method used by many consumers is to complaindirectly to the store manager. In general, the 'high up' the consumer 【S4】______takes his or her complaint, the faster he or she can expect to be settled. 【S5】______In such case, it is usually settled in the consumer's favor, assumed he 【S6】______or she has a just claim. Consumers should complain about in person 【S7】______whenever possible, but if it cannot get to the place of purchase, it is 【S8】______acceptable to phone or write the complaint with a letter. 【S9】______Complaining is usually most effective when it is done politely butfirmly, and especially when the consumer can demonstrate that is wrong 【S10】______with the item in question.【S1】
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Trees are so common arid quiet that we pay them little mind. What, for instance, should we answer when asked to name the biggest living thing Earth has ever seen? Dinosaurs? Blue whales? No, the largest sequoias in northern California weigh more than six blue whales. The tallest redwoods and Australian eucalyptus trees tower more than 300 feet high, three times the length of the greatest dinosaur.【71】Some bristlecone pine trees in the American West are more than 4, 000 years old, seedlings at the time the Egyptians were building the Pyramids. Trees sustain our lives and our planet in a thousand practical ways. This morning at breakfast—in your wood-framed house, on your wooden kitchen table—you might have enjoyed orange juice or a grapefruit. Both come to use from trees. Over your French toast you may have sprinkled cinnamon and nutmeg, the powdered bark and nuts of tropical trees. That quart of maple syrup on your table was boiled down from roughly 10 gallons of sap from a sugar-maple tree.【72】Do you like chocolate, almonds, cola beverages.'? Cocoa beans, almonds and kola nuts are tree products. Frees do more than mule life pleasant; they make life possible. Trees get water through their roots and, primarily through their leaves, they draw carbon dioxide from the air. Then, with the action of sunlight on cells containing chlorophyll and other materials, chemical reactions occur, and oxygen is released.【73】Photosynthesis also produces glucose, a type of sugar. Trees convert some of the glucose to starch, which they use for energy storage. The cellulose fiber we call wood is made of thousands of glucose molecules linked into giant chains that no longer taste sweet.【74】The ancient Greeks, for example, treated pain with a tea made by boiling willow leaves and bark, a tea modern scientists now know contains silicon, a precursor of acetylsalicylic acid—aspirin.【75】More recently, researchers isolated and synthesized the chemical ginkgolide from the tree for use in treating asthma, toxic shock and other ills.
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