Much of northern Canada lies within the Arctic Circle, and ______ ice or the spa

游客2024-01-04  22

问题 Much of northern Canada lies within the Arctic Circle, and ______ ice or the sparse vegetation known as tundra.

选项 A、it is permanently covered by
B、by permanently it is covered
C、is permanently covered by it
D、it is covered by permanently

答案 A

解析
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