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问题 单项选择题

舒林酸的代谢为（）

A.N-去烷基再脱氨基

B.酚羟基的葡萄糖醛苷化

C.亚砜基氧化为砜基或还原为硫醚

D.羟基化与N-去甲基化

E.双键的环氧化再选择性水解

答案

参考答案：C

单项选择题

要缩分粒度在25mm以上的煤样，只能用（）进行。

A、九点法

B、堆锥四分法

C、四分法

D、二分器法
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单项选择题

An analyst does research about the accrual method. Which of the following is most likely to record warranty expense for products a company sells in the period of the sale under to the matching principle（）

A. Warranty expense is accrued only.

B. Warranty expense is estimated only.

C. Warranty expense is both accrued and estimated.
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