单项选择题

The passage indicates that, in comparison to radio waves, gamma waves ______.

A．are not as long
B．produce louder sound
C．are less magnetic
D．do not form in the Sun's center
<上一题 目录 下一题>
热门 试题

单项选择题
According to the passage, energy is released in the Sun when ______.
A．helium atoms bind with each other
B．gamma radiation escapes from the spectrum
C．radiation is absorbed by helium
D．nuclei of hydrogen atoms collide
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
相关试题