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【单选题】
The cross-elasticity of demand between Homer's Holesome Doughnuts and Krusty's Krispy Crullers is 5.0, which indicates that Homer's doughnuts and Krusty's crullers are (荷马的Holesome甜甜圈和Krusty的Krispy Crullers之间的需求的交叉弹性是5.0,这表明荷马甜甜圈和Krusty的螃蟹是——中文由在线翻译而来,仅供参考)A.
complements and the relationship between the two goods is strong (that is, the quantity demanded of doughnuts is very responsive to changes in the price of crullers).补品和两种货物之间的关系很强(即,甜甜圈的需求量很大程度上反映了牛肉的价格变化)。
B.
complements and the relationship between the two goods is weak (that is, the quantity demanded of doughnuts is not very responsive to changes in the price of crullers).补品和两种货物之间的关系薄弱(即,甜甜圈的需求量对cruller的价格变化不是很敏感)。
C.
substitutes and the relationship between the two goods is strong (that is, the quantity demanded of doughnuts is very responsive to changes in the price of crullers).替代品和两种商品之间的关系很强(即,甜甜圈的需求量很大程度上反映了牛肉的价格变化)。
D.
substitutes and the relationship between the two goods is weak (that is, the quantity demanded of doughnuts is not very responsive to changes in the price of crullers).替代品和两种商品之间的关系很弱(即,甜甜圈的需求量对cruller的价格变化不是很敏感)。
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【简答题】欲配制0.1000mol/L的Na2CO3溶液500.00mL，应称取（ ）g固体。Na2CO3的相对摩尔质量为106.0。
【简答题】欲配制0.1000mol▪L的Na0H溶液500mL,应称取 固体。
【简答题】除了我们所熟知的公开计算机网络外,还存在有一个被叫做______的空间。(填2个汉字)
【单选题】Every time you step outside disaster ___ _.你每次出现在部落屠龙的战斗中都只是给大家徒增烦恼。( )
A.
follows
B.
falls
【单选题】A scale that gives you a different weight every time you step on suffers from poor _____.
A.
face validity
B.
construct validity
C.
split-half validity
D.
reliability
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