GRE考试

【单选题】Which of the following does the passage imply about the notion that the universe may be based on a spherical geometry
A、Of the three models of spatial curvature proposed byEinstein, only spherical geometry contradicts theEuclidean model.
B、The primary evidence for the notion is that that observers cannot see spatial flexure directly, but perceive it as gravitational attraction.
C、Space mapped on the spherical geometrical model may curve in one of three ways, asEinstein propose
D、
D、Spheres typically contain only three dimensions, whereas most models of the universe attribute it at least four.
E、Scientists are skeptical, given that mass and energy quantities seem insufficient, yet ultimately do not know enough to dismiss the notion.
网考网参考答案：E
网考网解析：
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