Which of the following statements are true about stock split?

A、Capital structure will be affected by stock split.;
B、Stock Split can be of some help to maintain the stability of stock price.;
C、External financing cost will be reduced by stock split.;
D、Internal financing cost will be reduced by stock split.;
E、The face value of the stock will be decreased by stock split.;
F、Internal structure of equity will not be affected by stock split.