“富贵不能淫，贫贱不能移，威武不能屈”这句名言反映了（     ）
①自尊的人最看重自己的人格                ②一个人的高风亮节会随着环境的变化而变化 

③自尊的人不图虚荣，拒绝沾染不良习气 ④为了维护自尊，可以舍弃许多东西，但不可丧失人格，做有损人格的事

架在A，B两根晾衣杆之间的均匀铁丝在夏、冬两季由于热胀冷缩的效应，铁丝呈现如图所示的两种形状．下列说法中正确的是（   ）

C

My name is Mary. I am an English girl. I'm twelve. My dad and mom are English teachers. I have a brother. His name is Tom and he is thirteen years old. We are in China now. Tom and I are in Beijing No.4 Middle School. Tom is in Class 4, Grade 8 and I am in Class 9, Grade 7.I have a dog. It looks strong(强壮的)．It has a big mouth and two black ears. We have many Chinese friends here. They are kind(和善的).

根据短文内容，判断正误。

刘雅对自己要求十分严格，在上学期期末中小学生学业水平评估中，她给自己定的目标是全班第一。结果在考试时，一遇到难题，她便心慌意乱，手足无措了。这说明 （）