A. The Planet Uranus Is Named After Greek God B. The planets concept hasn’t always been accepted C. Sometimes It Takes a Little

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问题 A. The Planet Uranus Is Named After Greek God
B. The planets concept hasn’t always been accepted
C. Sometimes It Takes a Little Bit of Maths And Logic to Matte Discoveries
D. The Discovery of Uranus Was Made By a Self-taught Astronomer
E. You need to be a trained astronomer to discover new things in the sky
F. It Was Galle Who First Observed the Planet Nemune
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选项

答案F

解析 见第五段第二句,一个世纪以前,牛顿就提到了行星引力的相互作用。接下来又说,两个科学家试图找到可能以引力牵引天王星的未知行星,由此我们可以推断:一颗行星的牵引作用可能会影响到另一颗行星的轨迹,故选 F。
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