第一节:单项填空(共15小题:每个题1分,满分15分)
从A、 B、 C、 D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
21.Higher temperature turning large ice sheet to water would cause _____ rise in sea levels worldwide and change _____ weather on earth.
A. a , the |
B. the , /
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C. a , / |
D. / , the |
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