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A rocket must reach a speed of 28, 440 km/h the pull of the earth. [ ] A.escapeB

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A rocket must reach a speed of 28, 440 km/h the pull of the earth. [ ] A.escapeB

A rocket must reach a speed of 28, 440 km/h ________ the pull of the earth.

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A.escapeB.escapingC.escapedD.to escape

试题答案

答案:D