Question

standard ______ unit must not be variable
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Answer 1

Answer:

. ........

Explanation:

Nonstandard units of measurement are units of measurement that aren't typically used, such as a pencil, an arm, a toothpick, or a shoe. We can use just about anything as a nonstandard unit of measurement

Answer 2

Answer:

fundamentar

Explanation:

standard fundamentar unit must not variable.