单项选择题

Questions 22 to 25 are based on the passage you have just heard.

A．Straight lines.
B．Curving lines.
C．Paralleled lines.
D．Crossing lines.
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单项选择题
A．It has its name as side-winder.B．It lives in the slippery sandy desert.C．Its body is very smooth.D．It does not adapt to the environment.
A．It has its name as side-winder.
B．It lives in the slippery sandy desert.
C．Its body is very smooth.
D．It does not adapt to the environment.
单项选择题
A．All sorts of snakes in the world.B．How the skiers climb a slope on skis.C．The special movement of the side-winder.D．The direction that the side-winder follows.
A．All sorts of snakes in the world.
B．How the skiers climb a slope on skis.
C．The special movement of the side-winder.
D．The direction that the side-winder follows.
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