结直肠癌早期症状易混淆：便血呈暗红粘液便，不同于痔疮鲜血；排便习惯改变，腹泻便秘交替；大便变细或有凹槽，伴腹部包块、消瘦。预防需少食红肉、加工腌制食品，多吃果蔬；40岁以上有息肉或肠癌家族史者，应定期肠镜筛查，切除癌前病变。(赵方园 张静 陈庆洋 张嘉怡）
murongpingdui《zhongguoxinwenzhoukan》shuo，zuihaoxianyouzhongyangkejiweiduiguojiakeyanjigoujinxingdingweiyouhua，mingqueyaozainaxielingyuzengjiawendingzhichi，“yidingbunengmangmu、qingyidiquzengjiawendingzhichi”。穆(mu)荣(rong)平(ping)对(dui)《(《)中(zhong)国(guo)新(xin)闻(wen)周(zhou)刊(kan)》(》)说(shuo)，(，)最(zui)好(hao)先(xian)由(you)中(zhong)央(yang)科(ke)技(ji)委(wei)对(dui)国(guo)家(jia)科(ke)研(yan)机(ji)构(gou)进(jin)行(xing)定(ding)位(wei)优(you)化(hua)，(，)明(ming)确(que)要(yao)在(zai)哪(na)些(xie)领(ling)域(yu)增(zeng)加(jia)稳(wen)定(ding)支(zhi)持(chi)，(，)“(“)一(yi)定(ding)不(bu)能(neng)盲(mang)目(mu)、(、)轻(qing)易(yi)地(di)去(qu)增(zeng)加(jia)稳(wen)定(ding)支(zhi)持(chi)”(”)。(。)
