(2012·四川)Scientists study ________ human brains work to make computers.
#30462
A
when
B
how
C
that
D
whether
推荐题目
Though he is busy, music has always been _______ his work.
#32003
A
as much a part of his life as
B
as a part of his life much as
C
as much as a part of his life
D
so much a part of his life as
Mother was busy washing dishes ________________ Father was watching TV．
#30098
A
until
B
if
C
since
D
while
There is hard evidence ________ George has something to do with the murder.
#30750
A
which
B
what
C
why
D
that