In an experiment, a scientist knew which patients received a sugar pill and which patients received the new drug. This experiment is flowed because?

Its either a) or b),wind and water erosion gradually widen the canyon

Bookpagechapter letter sentence word1

The need activity of the nurse is to suction discharges from the trachea. current treatment approaches in the pressing consideration facilities or crisis offices are corticosteroids and nebulized epinephrine; steroids have demonstrated advantageous in extreme, direct, and even gentle croup. in the clear instances of croup, anti-microbials are not endorsed, as the etiology is viral

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