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Giups với mình đang cần gấp hứa sẽ cho 5 sao Cho tam giác ABC vuông tại A, góc B =60 độ . Vẽ AH vuông góc với BC,(H ∈BC). a)So sánh AB và AC: GH và HC B)Lấy điểm D thuộc tia dối của tia HA sao cho HD=HA.CMR ΔAHC= ΔDHC c)Tính số đo góc BDC
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C. READING Read the passage and choose one correct answer for each question. The nuclear family, consisting of a mother, father, and their children may be more an American ideal than an American reality. Of course, the so-called traditional American family was always more varied than we had been led to believe, reflecting the very different racial, ethnic, class, and religious customs among different American groups. The most recent government statistics reveal that only about one third of all current American families fit the traditional mold and another third consists of married couples who either have no children or have none still living at home. Of the final one third, about 20 percent of the total number of American households is single people, usually women over sixty-five years of age. A small percentage, about 3 percent of the total, consists of unmarried people who choose to live together; and the rest, about 7 percent, are single, usually divorced parents, with at least one child. 36) With what topic is the passage mainly concerned? A. the traditional American family B. The nuclear family. C. The ideal family. D. The current American family. 37) The writer implies that ........................ . A. there has always been a wide variety of family arrangements in the U.S B. racial, ethnic, and religious groups have preserved the traditional family structure. C. the ideal American is the best structure. D. fewer married couples are having children. 38) Who generally constitutes a one-person household? A. A single man in his twenties B. A single woman in her late sixties C. An elderly man D. A divorced woman. 39) According to the passage, married couples whose children have grown or who have no children represent .............................. . A. 7 percent of households B. 20 percent of households C. 33,3 percent of households D. 3 percent of households 40) The word current in line 7 is closest in meaning to ................... A. present B. contemporary C. now D. modern

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