如何提高SAT阅读水平

提高SAT阅读水平的一个必用的方法就是经常找一些SAT阅读素材进行练习，培养语感和阅读速度，不懂的词汇要养成根据上下文的意思进行猜词的.习惯，之后再查词典，而不是一开始就查。读的时候不要一个单词一个单词的读，而是按意群来阅读，这样才有助于你SAT阅读水平的提高。

There are many unsolved problems in mathematics. Some prominent outstanding unsolved problems include

1. The Goldbach conjecture.

2. The Riemann hypothesis.

3. The conjecture that there exists a Hadamard matrix for every positive multiple of 4.

4. The twin prime conjecture .

5. Determination of whether NP-problems are actually P-problems.

6. The Collatz problem.

7. Proof that the 196-algorithm does not terminate when applied to the number 196.

8. Proof that 10 is a solitary number.

9. Finding a formula for the probability that two elements chosen at random generate the symmetric group .

10. Solving the happy end problem for arbitrary .

11. Finding an Euler brick whose space diagonal is also an integer.

12. Proving which numbers can be represented as a sum of three or four cubic numbers.