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【单选题】
What can be inferred from the example of the ant-lion in the first paragraph?A.
Instincts of animals can lead to unreasonable reactions in strange situations.
B.
When it is engaged in a chain actions it cannot be interrupted.
C.
Environment and heredity are two supplementary factors in the evolution of insects.
D.
Along the lines of evolution heredity becomes less and environment more important.
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举一反三
【单选题】The great()in the world today is whether there will be war or peace.
A.
problem
B.
difference
C.
issue
D.
tissue
【简答题】There is no ________ that women are playing an important role in the world today. A) of deny B) to denying C) denying D) of denying