Scientists study ________ human brains work to make computers.       
#78771
A
when
B
how
C
that
D
whether
推荐题目
Tell me ______________.
#37908
A
what is the jacket made from
B
how is this jacket made of
C
What this jacket is made in
D
Where this jacket is made
---Could you tell me        ?---Sorry, I have no idea. I wasn't at the party. 
#38151
A
what does she say at the party
B
what did she say at the party
C
what she says at the party
D
what she said at the party
—Do you know ________Guangzhou with his family?— Next week.
#38174
A
when does Mr. Brown visit
B
when will Mr. Brown visit
C
when Mr. Brown will visit
D
when Mr. Brown visits