题目内容

某一生物样品中蛋白质的含氮量为2.5mg,此蛋白质样品中蛋白含量为（）mg。

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Companies can fight crime using _ ._ is the act of gaining money by deceit.

It looked like Karen’s signature, but it was a _ .The store has security guards to watch for _ .

Falsification, lying, or any other _will get you red.B If the inventory is short, it’s possible someone was_ .

What is the passage mainly about?

A. a famous kickback case
B. methods for avoiding crime
C. falsification of personal records
D. reasons why theft prevention fails