試題詳解

22. What can be inferred from the passage?

(A)Phytoncides are used to grow forest plants and prevent tree cancer.
(B)Phytoncides may kill most of human natural cells after 30-day trips in Japan.
(C)Phytoncides fight against our health by providing bacterial and fungal qualities.
(D)Phytoncides are chemicals that trees produce to protect themselves from diseases.