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【简答题】
根据皮亚杰的认知发展阶段理论，在小学阶段，小学生正是处于形象思维到抽象思维建立的 阶段
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The price effect is equal to the
A.
substitution effect.
B.
substitution effect plus the income effect.
C.
marginal rate of substitution minus relative prices.
D.
substitution effect minus the income effect.
【单选题】price ceiling will have no effect if:
A.
it is set above the equilibrium price.
B.
the equilibrium price is above the price ceiling.
C.
it is set below the equilibrium price.
D.
it creates a shortage.
【单选题】A price ceiling will have no effect if:
A.
. it is set above the equilibrium price.
B.
. the equilibrium price is above the price ceiling.
C.
. it is set below the equilibrium price.
D.
. it creates a shortage.
【单选题】某产妇,诊断为混合臀先露,骨盆外测量,髂棘间径 26cm,髂嵴间径28cm,骶耻外径19.5cm,坐骨结节间径9.5cm,肛查宫口开大1指,宫缩30-40秒/5~6分钟,规律,该产妇的骨盆诊断为
A.
均小骨盆
B.
扁平骨盆
C.
正常骨盆
D.
横径狭窄骨盆
E.
漏斗骨盆
【单选题】The price effect is the effect of a ________ on the quantity of the good ________.
A.
decrease in the price; demanded
B.
change in the price; supplied
C.
change in price and income; consumed
D.
change in the price; consumed
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