The average life span of a red blood cell is about

A) 1 week.
B) 1 month.
C) 4 months.
D) 6 months.
E) 1 year.


C) 4 months.

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Seam welds can be made by producing a series of overlapping ____ or be one continuous resistance weld.

A. groove welds B. plug welds C. butt welds D. spot welds

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The pressure in a duct system is measured in:

A. psig B. psia C. " Hg D. " WC

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What device passes AC interference to ground and blocks DC voltage, and is used to control radio interference?

A) Resistor B) Coil (inductor) C) Capacitor D) Transistor

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The distance your vehicle travels from time your eyes see a hazard until your brain and recognize it is called distance

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