单项选择题

What is unusual about the head of African grass-mouse

A．It has a flattened shape.
B．It has an extra layer of pigmented tissue.
C．It has a furry covering.
D．It has a large cranial cavity.
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单项选择题
Why do XXXX-making beds need protection from the sun's rays
A．They are active during daylight hours.
B．Their heads are exposed to sunlight while they sleep.
C．They have only partially adapted to their tropical environment.
D．Their wings are easily damaged by ultraviolet radiation.
单项选择题
What kind of scene might be shown in a typical regionalist painting
A．People wording in a large factory.
B．People walking on crowded city streets.
C．An everyday activity in a small town.
D．A well-known historical event.
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