Hypoxia induces the resistance of tumor cells[4];and the heterogeny of solid tumors result in the appearance of subpopulations of differentproliferative potency in the same tumor tissue, so that the target cells sensitive to cell cyclespecific drug are reduced.

目前有研究認(rèn)為：實(shí)體瘤部分細(xì)胞缺氧和腫瘤組織的異質(zhì)性可能是導(dǎo)致腫瘤對放療和化療產(chǎn)生耐受的主要原因之一午夜插插欧美一级黄片，缺氧可以誘導(dǎo)腫瘤細(xì)胞對放療和化療的耐受性[4]′人人操人人操人人操，實(shí)體腫瘤的異質(zhì)性可使同一瘤組織內(nèi)具有不同增殖潛能的癌細(xì)胞亞群存在男生免费看黄色网站，導(dǎo)致細(xì)胞周期特異性化療藥物作用的靶細(xì)胞減少成人无码电影日韩。

The present studies suggest that the main cause werehypoxia of the part cells of solid tumor and heterogeny of tumor tissues for the resistance oftumor cells to radiotherapy and chemotherapy.

化學(xué)治療方法作為惡性腫瘤的主要治療手段之一无a黄色视频，但是在臨床治療的實(shí)際過程中療效往往不盡人意，認(rèn)為其可能與：①腫瘤細(xì)胞獲得多藥耐藥性（multidrug resistance户外毛片A片野战片，MDR）中文字幕第1页中文字幕在线；②化療的毒副作用；③腫瘤的異質(zhì)性等因素有關(guān)[13]久久性爱视频免费看。

Based on an analysis of thecommunication subject,teaching activity,teaching form and teachingeffect, one can see that in an effective classroom communication,it is of mutual subject,interaction,heterogeny and globality.

有效課堂教學(xué)交往的特征主要體現(xiàn)在教學(xué)交往主體具有互主體性WWW人人操人人干，教學(xué)交往活動具有互動性，教學(xué)交往組織具有異質(zhì)性久久综合迷奸片，教學(xué)效果具有整體性欧美亚洲韩国日本。

heterogeny：異代生殖

heterogenetic 異代生殖的 | heterogeny 異代生殖 | heterography 書寫異常

heterogeny：異型生殖

heterogenous 異種的 | heterogeny 異型生殖 | heterogony 世代交替

heterogeny：異型有性世代交替

heterogenote 雜基因子 | heterogeny 異型有性世代交替 | heterogony 異型生殖

heterogeny：異型世代交替

世代交替 alternation of generations, metagenesis | 異型世代交替 heterogeny | 生長 growth