Find out the unit "1". Xiaoming is 3 cm taller than Xiaoying. _ _ _ _ The original housing area of Xiaohongjia is less than it is now 1 1%. _ _ _ _ The price ratio of volleyball.

(1) Xiaoming is 3 cm taller than Xiaoying. Xiaoying's height is considered "1".

(2) The original housing area of Xiaohong House is less than the current housing area 1 1%, that is, the current housing area is regarded as "1".

(3) Volleyball is much cheaper than basketball.

(4) Xiaojun skips rope 1 17 times per minute, about 3% more than Xiaohua. The number of hops per minute of floret is regarded as "1".

So the answer is: Xiaoying's height, current housing area, basketball price and Xiaohua's jumping times per minute.