There is no way of knowing why one man makes an important discovery ______ another man, also intelligent, fails.
#30143
A
since
B
if
C
as
D
while
推荐题目
He ended his speech with a remark_______ knowledge _______power.
#31585
A
which; was
B
that; is
C
which ; is
D
that ; was
We'll carry on the work ______ we can get the machines we need. After all, it's the determination that really counts.
#31100
A
unless
B
before
C
whether
D
while
—I believe we will have a good time with Miss Green in your birthday party.—Maybe. But it is still a question, you know, ______ she can spare time to come.
#31277
A
whether
B
/
C
that
D
which
It is in the room _____my father was born in 1932. _____ I was born.
#34542
A
where, that
B
that, when
C
that, where
D
where, when
Future agriculture should depend on high technology __________ traditional methods.
#32826
A
as good as
B
as far as
C
as well as
D
as long as