题海让大学四年没有难题
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题目详情

单选题

A. The surface of the ocean is expanding faster

B. Volcanic activity on earth is increasing

C. The surface of earth contains tons of cosmic dust

D. Thousands of comets are colliding with earth's atmosphere

学科:学术英语2(2022级)

时间:2024-05-15 11:38:14

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