38. Donkeys and camels are still widely used in some parts of the world of burden.A. for

发布时间：2020-08-16 07:07:12


38. Donkeys and camels are still widely used in some parts of the world      of burden.
A. for animals
B. as animals
C. as beasts
D. instead of beats

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A. for animals
B. as animals
C. as beasts
D. instead of beats
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