单项选择题

A．They give out faint cries.
B．They make noises to drive away insects.
C．They extend their water pipes.
D．They become elastic like rubber bands.
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单项选择题
A．By taking out a patent on it.B．By building houses.C．By further perfecting his design.D．By telling others.
A．By taking out a patent on it.
B．By building houses.
C．By further perfecting his design.
D．By telling others.
单项选择题
A．It is produced by weird people.B．The woman does not like it.C．One can see a lot of strange things in it.D．The man is determined to watch it tonight.
A．It is produced by weird people.
B．The woman does not like it.
C．One can see a lot of strange things in it.
D．The man is determined to watch it tonight.
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