单项选择题

In the section of "Winners", the authors' objective is to______.

A．convince the reader that winning is important
B．describe the nature of winning and achieving
C．state the characteristics of a winning person.
D．explain how to be a winner
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单项选择题
Which of the following statements is NOT true
A．Members of a species differ from one another.
B．All differences between individuals are inherited.
C．Two organisms with identical genes may grow to different sizes.
D．Not all of the organisms can live to reproduc
单项选择题
What would happen to inherited characteristics in the next generation in the process of natural selection
A．Inherited characteristics that decrease an organism's chances of living and reproducing will be more common.
B．Inherited characteristics that increase an organism's chances of living and reproducing will be less common.
C．Inherited characteristics that increase an organism's chances of living and reproducing will remain the same.
D．Inherited characteristics that decrease an organism's chances of living and reproducing will be less common.
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