Nên dùng cặp đeo 2 vai
Theo khảo sát của bác sĩ Phạm Thị Nguyệt Ánh (Trung tâm Sức khỏe lao động và môi trường TP.HCM) trên 300 HS THCS về việc chọn lựa và sử dụng học phẩm hiện nay, có đến 72% HS cho biết thích cặp đeo một bên vai, chỉ 17% thích cặp đeo hai bên và 11% thích cặp xách tay.
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