There is a cyclical rise and fall in both the predator and prey populations with time.
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An increase in the birth rate of prey increases the predator population, but no the prey population.
A. 对
B. 错
Consumer-Resource system can have （）stable state.
幼儿舞蹈作品《流动娃》编导以“贴近实际，贴近生活，贴近群众”的创作手法。
A. 对
B. 错
编导用这种匠心独运的舞蹈人物刻画手段，生动巧妙地表现出在党和政府的亲切关怀下，“流动的娃是祖国的花”这一时代命题，寄托了时代情怀。
A. 对
B. 错
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