________ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.
#30263
A
Even if
B
As far as
C
If only
D
So long as
推荐题目
I asked my boss for a month’s holiday and, _____, she agreed.
#30879
A
what’s more
B
that is to say
C
believe it or not
D
in other words
Being a good listener is a kind of quality and that’s___it takes to keep friendship.
#30626
A
how
B
where
C
which
D
what
It is uncertain side effect the medicine will bring about , though about one thousand patients have taken it.
#30966
A
that
B
whether
C
what
D
how
In case of fire, stay low to the ground in a smoky room, ________ smoke always rises towards the ceiling.
#30873
A
as
B
when
C
while
D
once