28. According to the article, which factor may not influence the microbiota in infant's oral cavity? (A) Older siblings (B) Pumped and bottled breastmilk (C) Complementary feeding, (D) Mother's diet.

10. What's the main purpose of this study? (A) to study the appearance of Chenopodium formosanum, (B) to investigate the antioxidant activity of fermented djulis (C) to investigate the influence of production cost on probiotcis, (D) to raise fund from foreigners.