单项选择题

Passage One Questions 26 to 28 are based on the passage you have just heard.

A．They were created by Galileo in 1610.
B．They are electrical in nature.
C．They are created by nature.
D．They are there for almost thousands of years.
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单项选择题
A．By doing homework.B．By knowledge from books and parents.C．By having pocket money from their parents.D．By saving what they have.
A．By doing homework.
B．By knowledge from books and parents.
C．By having pocket money from their parents.
D．By saving what they have.
单项选择题
A．At a laboratory.B．In a classroom.C．At a bank.D．In a department store.
A．At a laboratory.
B．In a classroom.
C．At a bank.
D．In a department store.
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