問題詳情

（二）Penguins are very unusual animal. They are birds, but they can’t fly. They can only swim. They have been around since thetime of dinosaurs, but their appearances have changed a lot. Instead of flying high in the sky like other birds, they become greatswimmers. Their “wings” have changed so that they can swim faster to help them catch fish to eat. Once a year, penguins stay out of water for three weeks. During the time, they grow new feathers and eat nothing. It is adifficult time for them, but they look good after they are done.phpTOznHW.png
3. The word “unusual” means _____.
(A)special
(B) important
(C)small
(D)beautiful

參考答案

答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

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