顺序练习
话题练习
题型练习
口语评分
写作评分
单科机考
全科模考
A.
More stars would be visible in a heliocentric universe.
B.
A moving Earth would create a strong wind.
C.
Aristarchus’s calculations were inaccurate.
D.
Objects fall toward the center of the universe.
正确答案:BD
译文