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Word Search :
r

n.
1.a unit of radiation exposure
2.(physics) the universal constant in the gas equation: pressure times volume = R times temperature
3.the 18th letter of the Roman alphabet
4.the length of a line segment between the center and circumference of a circle or sphere

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    Idiom of the Day

    muddy the water
    to make matters confusing, to make something less clear
    The questions from the audience helped to muddy the water during the debate.



    1.
    I hardly ________ do it

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    My Account / Test History
    Invention
    Invention : morse code
    Year : 1838
    Inventor : samuel f.b. morse
    Country : us.      .. More >>
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