解读如何提高
SAT阅读水平
There
aremany
unsolved
problems
inmathematics.
Some
prominent
outstanding
unsolved
problems
include
1.TheGoldbach
conjecture.
2.TheRiemann
hypothesis.
3.Theconjecture
that
there
exists
aHadamard
matrix
forevery
positive
multiple
of4. 4.Thetwin
prime
conjecture
. 5.Determination
ofwhether
NP-problems
areactually
P-problems.
6.TheCollatz
problem.
7.Proof
that
the196-algorithm
does
notterminate
when
applied
tothenumber
196.
8.Proof
that
10isasolitary
number.
...


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