When one closes the mouth, the movement is called

A) depression.
B) elevation.
C) retraction.
D) protraction.
E) flexion.


B) elevation.

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The point-to-point method generally results in a saving of wire.

Answer the following statement true (T) or false (F)

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A hole in the tire tread can be patched with ________

A) A patch B) A plug C) Either A or B D) None of these

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Steam in a power plant is at 30 MPa and 400ÂșC in the boiler (steam generator). What mass of steam is contained in a 2-L volume?

A) 0.72 kg B) 0.24 kg C) 0.0104 kg D) 0.0062 kg

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