From this material we can ______hundreds of useful products.A.deriveB.reduceC.employD.replace

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Fromthismaterialwecan______hundredsofusefulproducts.A.deriveB.reduceC.employD.replaceFromthismateria

From this material we can ______hundreds of useful products.A.deriveB.reduceC.employD.replace
From this material we can ______hundreds of useful products.
A.derive
B.reduce
C.employ
D.replace

From this material we can ______hundreds of useful products.A.deriveB.reduceC.employD.replace
【选择】A. derive

【解析】

　　注意,句中的置于句首的介词短语 from this material 应该是说明所选谓语动词的来源.四个选项中只有A 和 B 两项 reduce 可以与 from 这种说明来源的状语搭配,所以 C 和 D两项可以排除.
　　derive from 指“通过…得到”,reduce from 指“从...中减少”.从题意来看,本句意思是“我们可以通过这种原料获取数百种有用产品”,因此 B 项也不在选择之列.

reduce 减少，削减
employ 雇佣
replace 取代 代替
A有获得 源于 得自的含义 应该选A

选择a, 我们可以看出许多有用的产品都有源于此材料。derive from 起源于

A 利用这个材料我可以获取成百上千个有用的产品。

选A
我们可以从这种材料中获得成百上千种有用的产品。
derive 源于；得自.起源，获得
reduce 减少，削减 缩小
employ 雇佣 使用
replace 取代 代替 更换；归还

A
从这个材料中我可以提取上百种有用的产品

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