单项选择题

Passage 1
Questions 11 to 13 are based on the passage you have just heard.

What is the main topic of this passage（）

A．The world’s major languages.
B．Cultural differences.
C．Arabian desert life.
D．Language and culture.

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单项选择题
Which of the following statements is NOT true according to the passage（）

A．Estimates of the universe’s age range from 10 to 20 billion years old, a frustratingly large spread.
B．The quest to learn the universe’s age began 70 years ago by a famous astronomer named Edwin Hubble.
C．The galaxies in the universe stand still, relative to each other.
D．The new number of the universe’s age is not quite the last value.
单项选择题
What does the speaker tell us about the human brain（）

A．It’s determined before birth.
B．Its left half specializes in music.
C．Its left half specializes in language.
D．It has a complex structure.
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