Bài 1: 1 bể bơi có chiều dài 50dm, chiều rộng 30dm, sau 3dm. Hiện nay trong bể đang có lượng nước chiếm 95% thể tích bể. a) Tính lượng nước đang có trong bể. b) Cần đổ thêm bao nhiêu lít nữa để đầy bể?

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IV. Đọc đoạn văn sau và quyết định những nhận định bên dưới là đúng hay sai. Viết T bên cạnh mỗi câu đúng và F bên cạnh mỗi câu sai. (1 điểm)The battle of Dien Bien Phu ended the Indochina War. Today Dien Bien Phu is a tourist destination. Many visitors are battle veterans or members of their families. As well as visiting the battle site, tourists can enjoy the beautiful scenery of the Muong Thanh Valley, visit the neighboring villages, and share the hospitality of the local people. Most of the people who live in the area are members of the Thai or H’Mong ethnic minorities. However, they do not depend on tourism alone to live. As Dien Bien Phu is only 30 kilometers from the Laos’ border, it is an important trading center. Food leaves here for Laos and Thailand and goods arrive for the northern provinces of Viet Nam. 1.Today Dien Bien Phu isn’t a tourist destination.............................................................................. 2.People can not visit the battle site in Dien Bien Phu........................................................................ 3.Tourists can enjoy the beautiful scenery of the Muong Thanh Valley, visit the neighboring villages, and share the hospitality of the local people............................................................................................ 4.Dien Bien Phu is only 30 kilometers from the Laos’ border, so it is an important trading center.............................................................................................