Today, smallpox, polio, typhoid and measles are no longer common because most people have been protected from them by _______.
A: anti-neurohomone drugs
B: antiviral drugs
C: vaccines
D: antibiotics
A: anti-neurohomone drugs
B: antiviral drugs
C: vaccines
D: antibiotics
举一反三
- 中国大学MOOC: Today, smallpox, polio, typhoid and measles are no longer common because most people have been protected from them by _______.
- 中国大学MOOC: Today, smallpox, polio, typhoid and measles are no longer common because most people have been protected by _______.
- ______ has been ended worldwide. A: Polio B: Measles C: Rubella D: Smallpox
- Today, most of people won’t study either Greek or Latin because （） A: they are no longer important B: people do not have enough time C: they are no longer existed D: people can not learn them well
- Which of the following can be inferred from the passage（） A: Few people will take drugs ff they are allowed B: The United Stated will be easily defeated if its citizens are allowed to take drugs C: It is a general practice to forbid drugs in different countries D: A majority of people will become addict to drugs if they are allowed to take them