单项选择题

Why has the award been granted to the IAEA

A．Because nuclear energy is much more important than other resources.
B．Because the agency has been promoting the safe use of nuclear energy.
C．Because the agency has done a lot of work.
D．Because the agency plays a very important role in the UN.

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热门试题

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.

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.