铰接四杆机构有曲柄的条件有（）个。A、1 B、2 C、3 D、4

间接成本是指与成本对象相关联的成本中不能追溯到成本对象的那一部分产品成本。( )

3批供试品按市售包装，在温度40℃±2℃，相对湿度75%±5%的条件下放置六个月的试验是（）

A.高温试验

B.高湿度试验

C.强光照射试验

D.加速试验

E.长期试验

An analyst does research about liquidity ratios. An analyst compares a company that uses the first-in, first-out (LIFO) method of inventory valuation with other companies in the same industry that mostly uses the last-in, first-out (LIFO) method of inventory valuation. Which of the following least likely needs an adjustment in order to compare the company with its competitors

A. Quick ratio.
B. Current ratio.
C. Cash conversion cycle.

简述禅宗的主要思想。

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