【简答题】在执行操作序列push(1),pop(),push(2),push(3),pop(),push(4)(这里push(i)表示i入栈,pop()表示出栈)之后,栈顶元素为___________。
【判断题】若一个行列式中某行上的元素全为零,则该行列式的值一定为零。
【单选题】听力原文:WOMAN: How long have you been a tree-climber, Mr Saw? MAN: I have been a tree surgeon and qualified tree-climber for the last 30 years. WOMAN: How did you start? MAN: I was encouraged to climb tr...
C.
When he was 30 years old.
D.
When he was 14 years old.
【单选题】Not only Simon but I ___________ Shanghai for ten years.
【单选题】发生漏损事故后,为减少进水量,应立即停车并将破损部位置于:()
【判断题】句子I seem to have been only like a boy playing on the seashore.是个SVO句型。
【单选题】— Have you taught English for a long time? — Well, I have only been a teacher _____ 5 years ago. [ ]
【多选题】下列货物销售,适用10%增值税税率的有( )。
【单选题】The manager insisted that I _______ a raise though I have been in this company for only six months.
【单选题】I have been away only for three years,_____ I can hardly recognize my hometown.