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Based on the figure above,the boiling point of ethyl alcohol under an external pressure of is
Ultraviolet Sun Radiation
A type of electromagnetic radiation emitted by the sun that has shorter wavelengths than visible light, can cause skin damage, and is instrumental in the production of vitamin D in the skin.
Free Hands
The freedom or capacity to act or operate without constraint or interference.
Visual Acuity
The clarity of vision or the sharpness of eyesight, measured as the ability to discern letters or numbers at a standardized distance.
Bipedalism
The ability to walk upright on two legs, a key distinguishing feature of humans and our ancestors.
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