✔ 最佳答案
Let give you an example for explaination.
If it is decided that every 1 hand subscription can get 1 hand and every 20 hands subscription can get 2 hands:
--- If you apply for 1 hand, you can get 1 hand.
--- If you apply for 2 hands to 19 hands, you are sure to get 1 hand in this case. And you may get 2 hands if you are lucky.
--- If you apply for 20 hands, you can get 2 hands for sure in this case.
So, 1) apply the chance of applying 4 hands is greater than applying 1 hand in order to get 1 hand.
2) It is very unlikely to get 4 hands if you apply for 4 hands only. Personally i think it's possible to get 1 hand only if you apply for 4 hands.
3) The more you apply, the higher the chance.
4) If it is decided that every 3 hands subscription can get 1 hand, then you can get one. If it is decided that every 2 hands subscription can get 1 hand, then you can get one. But if it is decided that every 4 hands subscription can get 1 hand, then you can get one by luck.