单选题
Which of the following is TRUE about habits according to the text?
A、
They are natural endowments to living creatures.
B、
They are subject to the formative influence of the environment.
C、
They are more important than instincts to all animals.
D、
They are destined to open out a much more far-reaching possibility in the evolution of human beings.
【正确答案】
B
【答案解析】
[解析] 可从二段最后一句对习惯的描述推出[B]为所述。[A]他们是生物的自然天赋。[C]他们对所有的动物都比本能更为重要。[D]他们注定会在人类的进化中开阔有极其远。大前景的可能性。
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