『资料评论』点击这里发表或查看更多评论 | ![]() ![]() |
□[好评]视频清晰,正好适用,谢谢啦 | "; htxt=htxt+"wwl1973 <2-7 14:41> | "; htxt=htxt+"
□ henhao | "; htxt=htxt+"yuluqingzhi <2-20 6:57> | "; htxt=htxt+"
□ 好 | "; htxt=htxt+"beyond1997 <2-18 10:11> | "; htxt=htxt+"
□[好评]十分清晰的视频,老师上课时完全可不做实验证明氯溴碘性质的递变性。 | "; htxt=htxt+"jsr101699 <3-6 14:30> | "; htxt=htxt+"
□[好评]好 | "; htxt=htxt+"hongjin0417 <3-2 15:9> | "; htxt=htxt+"