<html><head><title>Bài tập trắc nghiệm</title><meta charset="utf-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"><style></style></head><body><table border="1" style="width:100%"><tr><th rowspan="4"><iframe src="https://docs.google.com/forms/d/e/1FAIpQLSehI6B_VhB4C_1Mrq5u0QqXpYbEnrNcdTFe6FRRmG1fBnZuSA/viewform?embedded=true" width="900" height="700" frameborder="0" marginheight="0" marginwidth="0">Đang tải…</iframe></th><td><iframe height="100" src="https://drive.google.com/file/d/1tP1ClU0tBGtjyqPU6O0u-Nsim4vjVOfC/preview" width="360"></iframe></td></tr><tr><td><iframe height="100" src="https://drive.google.com/file/d/1SvxTXoj5wGeTNlNnmuKrxeX71A0-s6Fy/preview" width="360"></iframe></td></tr><tr><td><iframe height="100" src="https://drive.google.com/file/d/1lhI9SAwtPUeBNf_DylvacCQLm3fs8mfx/preview" width="360"></iframe></td></tr><tr><td><iframe height="100" src="https://drive.google.com/file/d/1lhI9SAwtPUeBNf_DylvacCQLm3fs8mfx/preview" width="360"></iframe></td> </th></tr></table></body></html>