試題詳解

49. What is the main idea of this paragraph?
(A) TV commercials show too many disinfectants and antibiotics that we don’t really need.
(B) We probably put too many efforts on protecting us from germs.
(C) All sorts of measures need to be taken to protect us from germs that surround us.
(D) Medical doctors need to be more careful with the use of disinfectants and antibiotics.