Một ô tô di chuyển từ A và đến B trong 5 giờ, trong đó, 2 giờ đầu di chuyển với tốc độ 50km/h và 3 giờ tiếp theo sau di chuyển với tốc độ 30km/h. Tính vận tốc trung bình trên toàn đoạn đường AB của ô tô ? A. 45 km/h. B. 38 km/h. C. 47 km/h. D. 32 km/h.

Select the correct answer. which of these lines from “the raven” by edgar allan poe to create the dark and gloomy tone of the poem? a. "'tis some visiter entreating entrance at my chamber door— some late visiter entreating entrance at my chamber door; b. once upon a midnight dreary, while i pondered weak and weary, over many a quaint and curious volume of forgotten lore— c. "and so faintly you came tapping, tapping at my chamber door, that i scarce was sure i heard you"—here i opened wide the door— d. bird or beast above the sculptured bust above his chamber door, with such name as "nevermore." hurry

Review the detail. beethoven chooses to stay when the children beg him to play more. which is the best inference that can be drawn about beethoven?

What type of writing is demonstrated in this excerpt by general philip henry sheridan? at once i set about preparing for the examination which precedes admission to the military academy, studying zealously under the direction of mr. william clark; my old teachers, mcnanly and thorn, having disappeared from somerset and sought new fields of usefulness. the intervening months passed rapidly away, and i fear that i did not make much progress, yet i thought i should be able to pass the preliminary examination. that which was to follow worried me more and gave me many sleepless nights; but these would have been less in number, i fully believe, had it not been for one specification of my, outfit which the circular that accompanied my appointment demanded. this requirement was a pair of "monroe shoes." now, out in ohio, what "monroe shoes" were was a mystery—not a shoemaker in my section having so much as an inkling of the construction of the perplexing things, until finally my eldest brother brought an idea of them from baltimore, when it was found that they were a familiar pattern under another name. a. research essay b. persuasive essay c. biography d. memoir