2. 外语
  3. There are fossil remains of dinosaurs in the rocky strata of every continent.

There are fossil remains of dinosaurs in the rocky strata of every continent.

admin2012-09-29  60
问题 There are fossil remains of dinosaurs in the rocky strata of every continent.
选项 A、layers
B、areas
C、peaks
D、canyons
答案A
解析 地层
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