问题
选择题
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
答案
C
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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
C