发源于河北省涞源县太行山东麓的拒马河流经北京市房山区，流至张坊镇分成南北二支，北支称北拒马河。北拒马河顺涿州而下与大石河、小清河汇流南折流至白沟镇。因此，涿州因山区泄洪造成大量积水。

raner，suizheloushichixuyuleng，dabufenchengshikaishiluxuzantinghuofangsongcankaojiajizhi。shenzhen、shanghaizuoweimuqianshaoshurengjixuzhixingcankaojiaxiangguanjizhidechengshi，chengweiquanguoshichangguanzhudejiaodian。然(ran)而(er)，(，)随(sui)着(zhe)楼(lou)市(shi)持(chi)续(xu)遇(yu)冷(leng)，(，)大(da)部(bu)分(fen)城(cheng)市(shi)开(kai)始(shi)陆(lu)续(xu)暂(zan)停(ting)或(huo)放(fang)松(song)参(can)考(kao)价(jia)机(ji)制(zhi)。(。)深(shen)圳(zhen)、(、)上(shang)海(hai)作(zuo)为(wei)目(mu)前(qian)少(shao)数(shu)仍(reng)继(ji)续(xu)执(zhi)行(xing)参(can)考(kao)价(jia)相(xiang)关(guan)机(ji)制(zhi)的(de)城(cheng)市(shi)，(，)成(cheng)为(wei)全(quan)国(guo)市(shi)场(chang)关(guan)注(zhu)的(de)焦(jiao)点(dian)。(。)