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Practice **questions on January 30th; a score of 2–6 points will be given upon reply (**no scoring after it is displayed)**

2017-01-30View Original

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This post was last edited by percy on 2017-2-4 11:47. True or False: During use, as time passes, the viscosity of petroleum asphalt increases while its plasticity decreases. Correct Note: Hidden items **will not be scored once they are revealed. Thank you!

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