危险性特别大的

Though chemical internal sphincterotomy especially using glyceryl trinitrate and botulinum toxin have good results in anal fissure treatment,their shortcomes are obvious.The most common side effect of GTN is headache,and its treatment cause needs 6 to 8 weeks.

手术的方式切开内括约肌，因为操作过程中总会造成内括约肌损伤，并且损伤程度相对较大，所以日后肛门失禁的危险性是存在的，特别是随着年龄的增高，肛门静息压降低，使得这一问题更加明显。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。