单项选择题

The survey has revealed that in the past 40 years the public faith in the American government has dropped by ______.

A．67 percent
B．51 percent
C．35 percent
D．16 percent
<上一题 目录 下一题>
热门 试题

单项选择题
According to the German researchers, the energy source at the center of the Milky Way Galaxy ______.
A．has been covered up by vast clouds of dust and gas
B．still remains unknown to astronomers
C．has proved to be a black hole
D．actually provides power for the rotation of file great spiral of stars
相关试题