Scientists study ____ human brains work to make computers.
#5936
A
when
B
how
C
that
D
whether
推荐题目
I bought a new type of cell-phone, which was the ____ of all my classmates.
#7105
A
wish
B
respect
C
envy
D
admire
This dictionary is _____ to my reading, but that one is __________.
#6647
A
great help; helpless
B
a great help; of no use
C
important; of few importance
D
very helpful; of no any use
At the meeting they discussed three different __________ to the study of mathematics.
#5053
A
approaches
B
means
C
methods
D
ways
My school isn't far from here. It's only ________ walk.
#7132
A
fifteen minutes
B
fifteen minutes'
C
fifteen minute's
D
fifteen minute
My brother has been preparing carefully for the English exam, so that he can be sure of passing it at his first _______
#6595
A
request
B
attempt
C
promise
D
purpose