_______ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.
#79673
A
Even if
B
As far as
C
If only
D
So long as
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______ you’ve got a chance, you might as well make full use of it.
#30940
A
Now that
B
After
C
Though
D
As if
______we can’t get seems better than _______we have.
#33172
A
What; what
B
What; that
C
That; that
D
That; what
______ children believe they can succeed, they will never become totally confident．
#30571
A
If
B
Since
C
Once
D
Unless
After studying mass of data，they drew a conclusion________China is still a developing country.
#30622
A
that
B
which
C
／
D
where