In manufacturing industries some types of plastics have become__________________(取代
In manufacturing industries some types of plastics have become__________________(取代了金属).
a substitute for metal
In manufacturing industries some types of plastics have become__________________(取代了金属).
a substitute for metal
第7题
Ackermann函数A(m,n)可递归定义如下:
试设计一个计算A(m,n)的动态规划算法,该算法只占用O(m)空间(提示:用两个数组val[0:m]和ind[0:m],使得对任何i有val[i]=A(i,ind[i])).
第8题
What was critical to Einstein's success?
A.His talent as an accomplished musician.
B.His independent and abstract thinking.
C.His untiring effort to fulfill his potential.
D.His solid foundation in math theory.
第9题
A.Mary who has little free time and not much money.
B.Tina who is free, wealthy and independent.
C.John who prefers practicing English with people in person.
D.Michael who intends to have a tour while learning languages.
第10题
A.Only a few people will receive junk mails.
B.People cannot stop junk mails.
C.Only individuals are under the threat of junk mails.
D.Junk mails are threatening the cyber space.