单项选择题

Questions 29 to 32 are based on the passage you have just heard.

A．Rat flea.
B．Cat flea.
C．Dog flea.
D．Rabbit flea.
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单项选择题
A．It can help her keep slim.B．It can help her gain admiration from others.C．It is the most popular exercise.D．It is her favorite exercise.
A．It can help her keep slim.
B．It can help her gain admiration from others.
C．It is the most popular exercise.
D．It is her favorite exercise.
单项选择题
In recent years, satellite television has started to be broadcast in the radio frequency range______.
A．between 3.4 GHz and 7 GHz
B．between 12 GHz and 14 GHz
C．between 14 GHz and 21 GHz
D．between 21 GHz and 27GHz
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