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【单选题】
嵌体预备时，错误的做法是（）A.
去尽病变腐质
B.
轴面最大线降至龈缘
C.
适当磨改异常的对 牙
D.
提供良好的固位形和抗力形
E.
预防性扩展
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知识点：
皮皮学刷刷变学霸
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【简答题】采煤机按行走机构形式分牵引式行走采煤机和( )行走采煤机。
【单选题】Forget football. At many high schools, the fiercest competition is between Coke and Pepsi over exclusive 'pouring rights' to sell on campus. But last week Jeffrey Durra, president of Coca-Cola America...
A.
the fiercest competition at high schools
B.
thought to have iii impact on students
C.
competing with commercials on campus
D.
brought into disrepute by Coke and Pepsi
【单选题】By listing some products of Pepsi, the author wants to tell us that
A.
Coke is making the same products.
B.
he prefers Pepsi to Coke.
C.
Pepsi has many different products.
D.
Pepsi is successful except soft drinks.
【单选题】The cross-price elasticity of demand for Coke with respect to the price of Pepsi has been estimated to be 0.61. If the price of Pepsi falls by 10% in a period, how will that affect the demand for Coke...
A.
The demand for Coke will decrease but by less than 6.1%.
B.
The demand for Coke will decrease by 6.1%.
C.
The demand for Coke will not change because many people prefer Coke over Pepsi.
D.
The demand for Coke will rise.
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