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问题 判断题

用穿镗法镗削孔壁间距较大或需镗同一轴线上的多个同轴孔的箱体时，为了提高各孔之间的同轴度误差可用支承套镗孔。

答案

参考答案：对

多项选择题

下列可用来表示心室肌前负荷的有哪些（）

A.心室收缩末期容积

B.心室舒张末期容积

C.心室舒张末期压力

D.心室收缩末期压力

E.心室快速射血期容积
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单项选择题

Given the following data during periods of rising prices and stable or increasing inventory quantities : LIFO Inventory = $ 80000 FIFO Inventory = $ 90000 Retained Earnings = $125000 When adjusting the balance sheet from (LIFO) to (FIFO), approximately what is the percent-age change in retained earnings

A．

A. 8.00%.

B．

B. -12.50%.

C．

C. 12.50%.
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