当大学生被问到他们童年时代的经历时，那些记得其父母经常经历病痛的正是那些成年后本人也经常经历一些病痛(如头痛)的人。这个证据说明，一个人在儿童时代对成年人病痛的观察会使其本人在成年后容易感染病痛。
以下哪项如果正确，最严重地削弱了以上论述?

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．