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20 points
PHOSPHINES is validvalid
PHOSPHINE, [n]
PHOSPHINE, a colorless gas analogous to ammonia, and having a disagreeable odor resembling that of garlic, also PHOSPHIN [n]
PHOSPHINE, [n]
PHOSPHINE, a colorless gas analogous to ammonia, and having a disagreeable odor resembling that of garlic, also PHOSPHIN [n]