问题
填空题
要使五边形木架(用5根木条钉成)不变形,至少要再钉______根木条.
答案
如图,至少需要2根木条.
故答案为:2.
要使五边形木架(用5根木条钉成)不变形,至少要再钉______根木条.
如图,至少需要2根木条.
故答案为:2.
假如你是李华,就个人爱好带来的困惑给英国朋友Stephen发电子邮件进行交流并请求帮助。要点如下:
2. 内容必须包括上表中的要点,可适当发挥,但不要逐字翻译; 3. 条理清楚、语句连贯; 4.文中不得出现真实的地名、校名和人名。 Dear Stephen, I am writing to tell you about my problem with my parents. I don’t know how to deal with it and would like your help. ▲ ▲ ▲ What shall I do? Can you offer me some suggestions? I am looking forward to your early reply. Best wishes Li Hua |