yi tu ...na ge al jia fei jing shu bu shi lv he jing ba?er tu...na ge bu ying gai yong x ma?
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yitu...nagealjiafeijingshubushilvhejingba?ertu...nagebuyinggaiyongxma?yitu...nagealjiafeijingshubush
yi tu ...na ge al jia fei jing shu bu shi lv he jing ba?er tu...na ge bu ying gai yong x ma?
yi tu ...na ge al jia fei jing shu bu shi lv he jing ba?
er tu...na ge bu ying gai yong x ma?
yi tu ...na ge al jia fei jing shu bu shi lv he jing ba?er tu...na ge bu ying gai yong x ma?
铝可以和硅(非金属)形成合金
表示价电子既可用点,也可用叉,随意.有多个原子键合时一个用点,一个用叉以示区分.
yi tu ...na ge al jia fei jing shu bu shi lv he jing ba?er tu...na ge bu ying gai yong x ma?
至少还有你 keu dae lan go seo su meul meom chu ni cha geu neo Ge wi ye Deol lim ma jeo neu Gil Su yi Seo tu nu ni Do mutt Go yi Seo yi sa lam man neun ji na keu leo ta ha ge ji se wo li heul leo na yi ga deul Go keu dae keo meun meo li wi ye hin
NA ZHONG SHOU JI ZUI HAO ER JIA GE YOU PIAN YI?
yao zen yang cai neng wang ji yi ge ren
yi tian ky ti wen ji ge wen ti
qing wen zhong ji yi ban de ge ren ji liao you ma
ibm he dell de bi ji ben na ge zhi liang hao ji ji xie xie
yao ru he wang ji yi ge renwo he ta zai tong yi ge di fang gong zuo
轴承钢GCr15 通俗叫法怎么说 是“ji luo yi wu”还是“ge luo yi wu” 还是“ji luo shi wu”?
you mei you na ma yi ge ren RT
名侦探柯南.bian xin yi shi na ji
dian nao you xia mian da zi de tu biao bu jian leda bu liao zizhi neng da zi mu da bu liao han zichong xin an zhuang le sou gou ye bu xingna ge fan yi de dui jiu zhe ge yi sictrl+shift bu xinyou xia ziao de na ge da zi de dou mei le
dian nao gao shou jin yi xia ji ji ji xiexiewo de dian nao jin tian chu mao bing le ,zhuo mian shen me ye mei you le ,you jian ye bu guan yong ,jin chong li wo ye neng le ye bu xing ,lian zhe ge da zi de dou neng bu chu lai le zhuo mian tu biao dou m
英语翻译wo ting la zhe shou ge na li shi ge rang wo zai yi xi wo zhe ni de shou ke yi ma wo zhen de bu xiang hou hui yi bie zi gei wo yi ci wo yi ci ji hui rang wo zhua jin ni de shou bu zai fang shou xing ma?wo zhen de hao ai ni xi huan ni wo ta
xiang zhuang yi ge WIN8 jie guo ru tu xian shi
yao ru he wang ji yi ge bu ai ni de ren
wo yi tian nen xiang ni ti ji ge wen ti ?
wo mei yang guo ji ,bu guo wo xiang kai ge ji chang ,zhe ke yi ma