Which sex is accurate, fortune telling or B-ultrasound?

This is not a comparison, because B-ultrasound is a problematic modern machine; Four pillars, or fortune telling, depends on personal attainments. If a real expert predicts, it can be said to be very accurate; And let the magic wand predict, that is blind.

The modern B-ultrasound is based on the general observation of doctors. Although there are also experienced stimulants, if we really want to say who is better, we can only say that B-ultrasound is stable. And predict the birth of boys and girls; It depends on the personal accomplishment of the forecaster.

If it helps, please accept it. Thank you.

At the same time, I remind you to beware of liars and liars.