久しぶりに、歯科国師の英語予想問題です。
問題( ) contributes to the digestion of food
and to the maintenance of oral hygiene.
Without the above function, the frequency of
dental caries, gum disease, and other oral problems
increases significantly.
( ) に入るのはどれか。1つ選べ。
A lacrimal fluid
B mucus
C peptic juice
D saliva
E feces
解答:MOREへ
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