单项选择题

It can be inferred from the passage that the Sun's light travels ______.

A．through solid objects in space
B．in many different directions
C．further in summer than in winter
D．more slowly than scientists previously believed
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单项选择题
According to the passage; through which of the following is the energy released in the Sun pass before it becomes light
A．Electromagnetic space.
B．The solar surface.
C．The X-ray part of the spectrum.
D．Interplanetary space.
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