【单选题】Many an English beginner finds ______ when studying English.
A.
listening really very hard
B.
it very hard listening
C.
very hard for listening
【简答题】理想的实现是一个过程:具有长期性、艰巨性和( )。
【多选题】人们常说:“实现理想不是一蹴而就、一帆风顺的事情”,即理想的实现是一个过程,这是因为理想具有()
【简答题】给出二值图像[0 0 1 1;0 1 1 1;1 1 1 1;1 1 1 1]的4方向和8方向链码。
【简答题】Do you think that a universal language will emerge within the next century? English is 51 the lingua franca in many parts of the world, and is the best language currently to know 52 business and scien...