问题
选择题
—There is hardly an environment on earth
—Some specie
s of animals have not adapted successfully.
A．to which
B．in which
C．for which
D．on which
答案
答案：A
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—There is hardly an environment on earth
—Some species of animals have not adapted successfully.
A．to which
B．in which
C．for which
D．on which
答案：A