試題詳解

46. According to the passage, which of the following is an opinion, but NOT a fact?
(A) Humans and zebrafish have 70 percent of genes in common.
(B) Zebrafish can quickly recover vision after damage to the retina.
(C) Scientists are testing if the GABA theory works on mice as it does on zebrafish.
(D) Understanding regeneration in zebrafish may allow humans to regrow their organs.