html><head><title>Bài t?p tr?c nghi?m</title><meta charset="utf-8"></head><body><center><table border="0"><tr><th><iframe src="https://drive.google.com/file/d/1wz0M5sNYhHxsHgBlp0AwgHh6cH1YyjXy/preview" width="1000" height="600" frameborder="0" marginheight="0" marginwidth="0">Ðang t?i…</iframe></th><th>ocs.google.com<iframe src="https://docs.google.com/forms/d/e/1FAIpQLSfCu6E29M7f0C-l8ebA60nLMTqg-IH0LBnuLr6czQL5OlVntA/viewform" width="360" height="580" frameborder="0" marginheight="0" marginwidth="0">Ðang t?i…</iframe><center><font color="blue">Giáo viên: Nguyễn Thị Thu Thủy </font></center></th></tr></table></center></body></html>