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【单选题】
{ } 又可分为操作演示和教具实物的演示。A.
消除质量缺陷法
B.
独立操作训练法
C.
现场教授
D.
示范操作
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举一反三
【单选题】________ good and sweet，this kind of apple was soon sold out in the market.
A.
Tasted
B.
Tasting
C.
Having been tasted
D.
Being tasted
【简答题】请输入第三题翻译下列短语 第8题答案
【单选题】If 400 apple pies are sold at $4 per pie, but 600 apple pies are sold at $3 per pie, we know:
A.
that the demand for pies is elastic over that price range.
B.
that the demand for pies is inelastic over that price range.
C.
that the demand for pies is unit elastic over that price range.
D.
nothing about the elasticity of demand.
【简答题】请输入第三题翻译下列短语 第8题答案
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