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mikael mikael
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10 years ago
When compared with earlier national surveys, gingivitis has declined in the United States because of increased awareness of oral hygiene as part of a daily personal hygiene routine.
A) Both statement and reason are correct.
B) Both statement and reason are incorrect.
C) The statement is correct, but the reason is incorrect.
D) The statement is incorrect, but the reason is correct.
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padrepadre
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10 years ago
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mikael Author
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10 years ago
Thanks again.
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