This kind of animal is able to protect itself from danger in many years. the colouring o

问题补充：

This kind of animal is able to protect itself from danger in many years. , the colouring of its hide makes it almost invisible when it is feeding in the shadow of trees.

A. First at all

B. First of all

C. In all

D. At all

答案：

A. First at all

(答案→)B. First of all

C. In all

D. At all

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