科西嘉岛野生欧洲盘羊是8000年前这个岛上的驯养羊逃到野外后的直系后代，因而它们为考古学家提供了在人为选择培育产生现代驯养羊之前，早期驯养羊的模样的图画。
上述论证做了以下哪项假设?

A <img width="199" height="45" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222802_5073.jpg" /> B <img width="199" height="46" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222803_6324.jpg" /> C <img width="220" height="46" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222804_6323.jpg" /> D <img width="257" height="46" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222805_7417.jpg" />

A <img width="123" height="41" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222807_8678.jpg" /> B x-ln|x|+C． C C-ln|x|． D <img width="159" height="41" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222808_8834.jpg" />

A e³. B 2e³． C 3e³． D 4e³．

A <img width="59" height="42" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222812_1011.jpg" /> B <img width="58" height="42" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222813_1479.jpg" /> C <img width="59" height="41" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222814_2104.jpg" /> D <img width="59" height="41" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222815_2885.jpg" />

A 0． B 1． C <img width="30" height="31" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222816_3198.jpg" title="" align="" alt="" /> D <img width="20" height="36" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222817_3980.jpg" title="" align="" alt="" />

A <img width="24" height="41" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222819_5073.jpg" /> B <img width="24" height="41" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222820_5698.jpg" /> C <img width="24" height="41" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222821_6011.jpg" /> D <img width="23" height="41" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222822_6938.jpg" />

A <img width="160" height="79" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222823_7417.jpg" title="" align="" alt="" /> B <img width="160" height="78" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222824_8042.jpg" title="" align="" alt="" /> C <img width="160" height="33" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222825_8980.jpg" title="" align="" alt="" /> D <img width="160" height="46" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222826_9321.jpg" title="" align="" alt="" />

A P{X≤0}=P{X≥0}． B P{X≤1}=P{X≥1}． C f(x)=f(-x)，x∈R． D F(x)=1-F(-x)，x∈R．

A <img width="50" height="38" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222829_0386.jpg" title="" align="" alt="" /> B <img width="60" height="35" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222830_1323.jpg" title="" align="" alt="" /> C <img width="60" height="34" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222831_1949.jpg" title="" align="" alt="" /> D <img width="60" height="34" src="https://www.beizhujiaoyu.com/uploads/202208/20211222222832_3198.jpg" title="" align="" alt="" />

A -1． B 1． C -2． D 2．