【单选题】Could you tell me when _______? [ ]
A.
will the scientist arrive
B.
the scientist would arrive
C.
the scientist will arrive
D.
would the scientist arrive
【单选题】The scientist contested the assumption of previous scientists that the fate of human beings could not be predicated.
【单选题】The scientist wrote a monograph after many months of research. This means the scientist wrote about
【简答题】栈的特点是:它一种 的线性表,队列的特点是:它是一种 _ ______ 线性表。