GMAT 考满分题库

Antarctica receives more solar radiation than does any other place on Earth, yet the temperatures are so cold and the ice cap is reflective, so that little polar ice melts during the summer; otherwise, the water levels of the oceans would rise 250 feet and engulf most of the world's great cities.
• Ais reflective, so that little polar ice melts during the summer; otherwise, 分析该选项
• Bis so reflective that little of the polar ice melts during the summer; were it to do so, 分析该选项
• Cso reflective that little polar ice melts during the summer, or else 分析该选项
• Dreflective, so that little of the polar ice melts during the summer, or 分析该选项
• Ereflects so that little of the polar ice melts during the summer; if it did 分析该选项

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