单项选择题


Questions 14-16 are based on the following monologue introducing the development of vaccines. You now have 15 seconds to read Questions 14-16.
Who first showed that germs caused disease

A．Edward Jenner.
B．Lady Montague.
C．Louis Pasteur.
D．Robert Koch.
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单项选择题
What was the first step in fighting against infectious disease
A．The discovery of a vaccine.
B．A powerful injection.
C．The help of a milkmaid.
D．The help from government.
单项选择题
Where did Made and Pierre Curie meet each other
A．In London.
B．In Hamburg.
C．In Paris.
D．In Rome.
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