Height is just one of the thousands of features your genes decide. In fact, because you have two parents, your genes provide you a height that usually lands somewhere between the height of each parent. If both your parents are tall, then most probably you will be tall, too, but if you have questions about how tall you're going to be, ask your doctor if he or she can help you find it out.
    But genes don't decide everything. For example, eating an unhealthy diet can keep you from growing to your full potential(潜力). Getting plenty of sleep and enough exercise will help you grow to the expected height.
    No doubt you're wondering how fast you should grow. It depends. There's no perfect or right answer. Generally speaking, kids grow about 2 inches (6 centimeters) a year between age 3 and the time when they start puberty (when your body starts changing and becoming more grown up).
    Your doctor will know how your growth has been going over the years. Two centimeters here and 2 inches there are not nearly as important as the height you're at now, how you've been growing up to this point, and what other changes your body may be going through.
    Don't be scared if you seem to have grown a lot in a very short time. Everyone has a growth spurt（高峰）during puberty. The age for starting puberty is about 10 for girls and about 11 for boys. But it can be earlier or later ----between 7 and 13 for girls and 9 and 15 for boys.
    You'll usually begin to notice that you're growing faster about a year or so after your body starts to show the first changes of puberty.

竖版世界地图以崭新的视野展示世界，甲、乙、丙、丁对应的地理区域，正确的是（    ）

材料一  最高人民法院公布的《关于审理毒品犯颦案件适用法律若干问题的解释》规定：向在校学生贩卖毒品的，利用、教唆未成年人非法持有毒品的

被谗定为规定为“情节严重”加重处罚。  

材料二  明星张某容留他人吸毒一案在朝阳法院；舞磨审理。法院认为，张某实际容留他人吸毒，主观恶性较大，一审依据刑法以容留他人吸毒罪判处其有

   期徒刑l0个月，处罚金2 000元。