문제 내용: 다음 글의 내용과 일치하지 않는 것을 고르시오.
선택지 1: In the nineteenth century, opening windows was irrelevant to the density of miasma.
선택지 2: In the nineteenth century, it was believed that gentlemen did not live in places with bad air.
선택지 3: Vaccines were invented after people realized that microbes and bacteria were the real cause of diseases.
선택지 4: Cleaning cuts and scrapes could help people to stay healthy.