【单选题】—I am sorry.I broke your mirror. —Oh,really? .
【单选题】--I am really sorry. I have kept you waiting so long. -- _______.
【简答题】对方程3χ2-eχ=0使用等步长扫描方法判定该方程有几个实根?并用Newton法求出该方程的全部实根(ε= ×10-5)。
【判断题】“Her nephew is happy.”对应的汉语意思是“她的侄子很开心。”
【判断题】英语中,侄子与侄女都用“nephew”、表弟与表妹都用“cousin”来表达。
【单选题】I am really sorry. Can you wait minute, please?