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大学英语二级考试模拟试题一

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it gets sixteen times weaker(four times four)and so on. Р69. The best title for this passage is. Р[A] The Earth Weight Р[B] Weight in Space Р[C] Changing Weight on the Earth Р[D] Weight on and off the Earth Р70. We can feel things are heavy because. Р[A] weight is a fixed quality in an object Р[B] they are far away from the centre of the earth Р[C] of the earth's strong attraction for them Р[D] they are not taken away from the surface of the earth Р71. If the distance between two objects is shortened by half, their gravitational attraction will. Р[A] double Р[B] e four times stronger Р[C] be the same Р[D] get four times weaker Р72. If an object weighed one pound 8 000 miles above the earth, it would weigh on the surface of the earth. Р[A] 6 pounds Р[B] 4 pounds Р[C] 9 pounds Р[D] 1/9 pound

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