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hanguyen513421
2 năm trước
*** LẤY CÂU D NHA Cho tam giác ABC nhọn có hai đường cao BF, CE cắt nhau tại H. Tia AH cắt BC tại D. a) C/m: Δ AEC đồng dạng ΔAFB. b) C/m: AE.AB=AF.AC rồi từ đó suy ra ΔAEF đồng dạng với ΔACB. c) C/m: ΔBDH đồng dạng ΔBFC và BH.BF + CH.CE = BC ². d) Vẽ DM ⊥ AB tại M, DN ⊥ AC tại N. C/m: MN // EF. *** Giải giúp mình câu d với, cảm ơn.
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Read the passage below and answer for each question. It has been thought that women are the second class in citizen, and men are the first. There is not a real equality of opportunity for men and women. Years ago, people were living in a man-dominated society. Women had to obey their husbands and fathers absolutely. Women's place was in the kitchen and women's work was housework. In many places, women were not even allowed to go to school. Women had no rights, even the right to choose husband for themselves. Men usually occupied high positions in society so they thought they were more intelligent than women. Men often considered women as their property. Sometimes, they were mistreated by their husbands and suffered the problem as a fate. Many parents did not even want to daughters. Despite the progress, there remain outdated beliefs about women's roles, traditionally passed down from generation to generation. Men are commonly seen as the strong bodies, bread-winners in the family and key leaders in society, while women are restricted to being housewives and child bearing and care, and housework such as washing and cooking. According to social surveys, many women in the 21st century still have to work over 12 hours a day including working in offices and doing countless household chores without any help from their husbands. In some regions, the labor of women is not recognized despite the hardships they endure to support the whole family. Moreover, women are the direct victims of family violence, especially in rural areas. Thanks to the women's liberation movement, nowadays women have proved that they are equal to men in every aspect. An average woman has weaker muscles than an average man but she may be as intelligent as he is. Women can do everything that men can, and women can do one thing that no man can: they produce children. 1. Were women allowed to go to school in the old day? 2.In the old society, what was mainly considered as women's work? 3. Do women 21 st century still have to work hard? 4, What is the positive effect of the women's liberation movement ?

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