【简答题】For this part, you are allowed 30 minutes to write a composition on the topic: Will Computers Replace Teachers in the Future? You should write no less than 120 words and base your composition on the o...
【单选题】输入 comput* 检不到下列哪个词 ?
【单选题】以下哪个检索式或检索词可以在常用的外文数据库中一步检索以comput开头的所有检索词?
D.
computer or computing or computation
【多选题】assist可以被下列哪些词可以替换,以起到小词活用的作用?
【单选题】139 The initial cost of a product and the product's operation and maintenance costs _____ .
A.
increases perceived value when balanced.
B.
are incidental to each other because initial costs are 'sunk'
C.
decreases design costs as operation periods increase
D.
provides perceived function value and product social dysfunction
E.
are integrally related with each other because initial costs are 'sunk'
【单选题】57 The initial cost of a product and the product's operation and maintenance costs _____ .
A.
increases perceived value when balanced.
B.
are incidental to each other because initial costs are 'sunk'
C.
decreases design costs as operation periods increase
D.
provides perceived function value and product social dysfunction
E.
are integrally related with each other because initial costs are 'sunk'
【简答题】A.C.Yao.于1982 年在《Protocols for secure comput-actions》首先提出()问题----姚问题。