下列分别属于自尊、自信表现的是（　　）

①张辉在课堂上从不积极主动发言，以免答错让同学笑话    ②他人发表意见时，刘华总是注目、倾听，从不打断别人

③王波不喜欢和李清在一起，因为李清成绩比王波好许多    ④曾龙想：我基础扎实、勤奋努力，没有理由不取得成功

At the foot of the mountain        .

为比较Fe^3＋和Cu^2＋对H₂O₂分解反应的催化效果，甲、乙两位同学分别设计了如图甲、乙所示的实验。下列叙述中错误的是(    )

短文改错。便条中共有10处错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧）。并在其下面写出修改后的词。
删除：把多余的词用斜线（＼）划掉。
修改：在错的词后划一横线,并在该词下面写出修改后的词。
注意：1）．每处错误及修改均仅限一词;
2）．只允许修改10处,多者（从第11处起）不记分。
    One day, I was cooking in the kitchen when the telephone rings. I went to answer it immediately. She was my close friend, Lisa. When we were talking on a phone, the fire alarm sounded. I dashed back to the kitchen. The room full of smoke and the beef was bad burnt. I quickly turned off the gas, opening all the windows, and then rushed out of the house. In my surprise, two fire engines were outside my house. I was rather worrying. I told about the firemen that it was my careless cooking which caused the heavy smoke.

如图，已知正三棱柱ABC﹣A₁B₁C₁的，底面边长是侧棱长2倍，D、E是A₁C₁、AC的中点，则下面判断不正确的为（  ）