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chunganh123
2 năm trước
Đốt cháy hoàn toàn 0,672 lít hỗn hợp khí etilen và propilen cần 2,688 lít khí oxi. Toàn bộ sản phẩm cháy dẫn vào dung dịch nước vôi trong dư thu được m gam kết tủa. Tính % thể tích mỗi khí trong hỗn hợp đầu. Tính giá trị m.
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Mark the letter A, B, C or D on your answer sheet to indicate the meaningful sentence from the cues given. These/ baskets/ make/ thin/ bamboo/ strips. A: These baskets were made in thin bamboo strips. B: These baskets were made by thin bamboo strips. C: These baskets are made of thin bamboo strips. D: These baskets are made with thin bamboo strips. 2 Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions: _____________ she’s young, she’s the most famous artisan in the village. A: In order to B: Whereas C: When D: Although 3 Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits blank (27). We went to Doi Tam, a village famous (25)______ its drum making techniques, in Ha Nam Province last month. The craft was first introduced to the village sometime in the 8th or 9th century. Today there are more than six hundred drum makers living in Doi Tam village. #x200eI was amazed to see big drums in front of every house in the village. People say that it (26)______ four workers three days to make a drum with a diameter of 1.5 metres. To make a drum, the craftsmen have to follow an eight-stage process. Stretching the drumhead is the most challenging stage (27)_______ they have to carefully assess the sound it makes. The other steps do not require such high skills. #x200eNowadays, Doi Tam drums are not only famous in Viet Nam but are also (28)_______ to other countries such as Laos, Cambodia, Japan, and the USA. A: although B: since C: so D: but 4 Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions . A: medicine B: graduate C: encourage D: friendship 5 Mark the letter A, B, C or D on your answer sheet to indicate the meaningful sentence from the cues given. Phong/ walk/ fast/ it/ really/ hard/ keep up with/ him. A: Phong walks fast, and it’s really hard for keep up with him. B: Phong walks fast, so it was really hard to keep up with him. C: Phong walks fast, and it’s really hard to keep up with him. D: Phong walks fast, so it was really hard for keeping up with him. 6 Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions: They keep changing the decoration of the shop ________ they can attract more young people. A: because B: so that C: when D: although 7 Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions: She presented me with a new blanket on which she ________ some beautiful flowers. A: moulded B: carved C: knitted D: embroidered 8 Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. A: embarrassed B: preserved C: wandered D: embroidered 9 Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions: She’s just received a large order from Japan, but she is afraid of not finishing her order on time _____________ her workshop lacks good artisans. A: so that B: because C: in order to D: although 10 Mark letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to the original sentence in each of the following questions. The artisan moulded the copper to make a bronze drum. A: The artisan moulded the copper because of they wanted make a bronze drum. B: The artisan moulded the copper because they want make a bronze drum. C: The artisan moulded the copper so that they could make a bronze drum. D: The artisan moulded the copper so that they can make a bronze drum.

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