There are the following statements: the absolute value of 1 is its own number, with 0 and 1. 2. The absolute value of a rational number must be a positive number The absolute value of the opposite number of 3.2 is 2.4. The absolute value of rational numbers is not negative. How many are correct? A0 B1 C2 D3

There are the following statements: the absolute value of 1 is its own number, with 0 and 1. 2. The absolute value of a rational number must be a positive number The absolute value of the opposite number of 3.2 is 2.4. The absolute value of rational numbers is not negative. How many are correct? A0 B1 C2 D3

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The absolute value of 1 is its own number, with 0 and 1
Analysis: the absolute value of all positive numbers is itself
The absolute value of a rational number must be a positive number
The absolute value of 0 is 0
The absolute value of the opposite number of 3.2 is 2
4. The absolute values of rational numbers are not negative
There are 2 correct ones, select [C]