单项选择题

What is the conversation mainly about
What is the man worried about according to the conversation

A．Forgetting codes and passwords.
B．The security of online shopping.
C．The quality of the computer.
D．The after-sales service.

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单项选择题

单项选择题

What evidence in the passage can show that Americans love museums A．There are all kinds of museums in America. B．All museums in America are free. C．Travelers go to visit American museums. D．Americans visit the museums as much as possible.

A．There are all kinds of museums in America.
B．All museums in America are free.
C．Travelers go to visit American museums.
D．Americans visit the museums as much as possible.

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