【判断题】
阅读课文II. My first days in Beijing, 判断下列句子表述内容的正误:The writer (作者) had never been to Beijing before.
【判断题】
阅读课文II.Which Is Stronger? 判断下列句子表述内容的正误:At the beginning, the Wind thought himself very important and looked down on the Sun.
【多选题】
This is the_________ motivating force behind the development of adult education.
【单选题】
_________ do you want to learn French? What is the reason?
【单选题】
Many joggers feel that if they can succeed in jogging, they can succeed in_________ things as well.
【单选题】
We passed a pool in which ducks were_________.
【判断题】
若高维向量组线性无关,则减维后得到的低维向量组也线性无关。
【判断题】
若线性方程组AX=B的导出组AX=0只有零解,则AX=B有唯一解。