Man-made canals were supposedly discovered by________. A: Deimos B: Phobos C: Schiaparelli D: Viking 1
Man-made canals were supposedly discovered by________. A: Deimos B: Phobos C: Schiaparelli D: Viking 1
______ and ______ are the two moons of Mars. A: Mercury , Venus B: Asaph ,Hall C: Phobos , Deimos D: Romeo, Juliet
______ and ______ are the two moons of Mars. A: Mercury , Venus B: Asaph ,Hall C: Phobos , Deimos D: Romeo, Juliet
______ and ______ are the two moons of Mars. A: Mercury , Venus B: Asaph ,Hall C: Phobos , Deimos D: Romeo, Juliet
______ and ______ are the two moons of Mars. A: Mercury , Venus B: Asaph ,Hall C: Phobos , Deimos D: Romeo, Juliet
下列哪几项关于火星的卫星的叙述是正确的？（） A: 球体形状 B: 两颗卫星距离火星位置一样 C: 非球状 D: Phobos距离火星比较近，运行较快
下列哪几项关于火星的卫星的叙述是正确的？（） A: 球体形状 B: 两颗卫星距离火星位置一样 C: 非球状 D: Phobos距离火星比较近，运行较快
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