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工程與科技 大學

各位大神 求解 拜託🙏🆘

CA 梁柱 一截面積是原來的兩倍 22. Two girders are made of the same material. Girder A is twice as long as girder B and Bo DE C B³ has a cross-sectional area that is twice as great. The ratio of the mass density of girder A to the mass density of girder B is: 質量密度 A) 4 B) 2 C) 1 D) 1/2 E) 1/4 29. During a short interval of time the speed v in m/s of an automobile is given by v=at² + bt³, where the time t is in seconds. The units of a and b are respectively: A) m-s²; m-s4 s³/m; s4/m dv=at+bt² B) C) m/s²; m/s³ D) m/s³; m/s4 E) m/s4; m/s5 34. The position y of a particle moving along the y axis depends on the time t according to the equation B) C) D) E) 質固定,体2倍 #%# 40. The coordinate of an object is given as a function of time by x = 7t-31², where x is in meters and t is in seconds. Its average velocity over the interval from t = 0 to t = 2 s is: A) 5 m/s X₂=0, X₁₂=14-12=2 B) -5 m/s 11 m/s C) D) -11 m/s (2-0)/2=1 E) -14.5 m/s 41. The coordinate of a particle in meters is given by x(t) = 16t-3.01³, where the time t is in seconds. The particle is momentarily at rest at t = A) 0.75 s A y = at -bt². The dimensions of the quantities a and b are respectively: A) L²/T, L³/T2 B) L/T², L²/T C) L/T, L/T² D) L³/T, T²/L E) none of these 1.3 s 5.3 s 7.3 s 9.3 s V(t) = 16-9+² =- [9t²-16) =-(3t+4) 13t-4) =+= 0.75 45. The velocity of an object is given as a function of time by v = 4t-312, where v is in m/s and t is in seconds. Its average velocity over the interval from t=0 to t=2 s: A) is 0 B) is -2 m/s C) is 2 m/s D) is -4 m/s E) cannot be calculated unless the initial position is given 49. A particle moves along the x axis according to the equation x = 61² where x is in meters and t is in seconds. Therefore: E B) C) D) E) A) the acceleration of the particle is 6 m/s² t cannot be negative the particle follows a parabolic path each second the velocity of the particle changes by 9.8 m/s none of the above

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英文 高中

想問大家 這兩段會怎麼用自己的話做英文摘要?

SCOBY [skobi]symbiotic culture of bacteria and yeast [simbiottk] [jist](細菌和酵母菌共生培養;紅茶菌) 的首字母縮寫,symbiotic 表示「(動植物)共生的」,yeast 指「酵母菌)」。 FRI 5 TE Track 25 Facts about Kombucha 關於康普茶你該知道的事 -Helen Yeh Toad.cn You may have come across kombucha on restaurant menus and wondered what it was. If you had tried it, you would have noticed it tastes like fizzy vinegar. Recently, it has exploded in popularity.' But what's so special about this drink? Kombucha begins its life as a mixture of tea and sugar. The secret ingredient² that turns this sweetened tea into kombucha 10 is a pancake-shaped blob called a SCOBY, which is short for symbiotic culture of bacteria and yeast. The SCOBY ferments* the tea by gradually converting the sugar into acids. vymy UVCI 2, Vuu years ago in China, where people drank it for its health-promoting benefits. As the story goes, a Korean doctor by the name of Kombu brought the tea from China 20 to Japan to cure an ailing emperor. From there, kombucha eventually made its way to Europe. While kombucha has been seen as a miracle cure for some diseases, there is no nedical evidence to support such claims. However, like other fermented products, combucha can aid in digestion and keep our gut healthy. And since it's lower in ugar than many sodas, it could also be a jood choice as a refreshing beverage. 翻譯請見第68頁

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英文 高中

求英文填空第14題

American Civil War was drawing to a close, French historian Édouard de Laboulaye proposed that a monument be built as a gift from France to the United States 13. the latter's success in building a logrice mi desh gola ebigy sag is most inneb, 0. viable* democracy and to honor the efforts of late president Abraham Lincoln. In addition, it was wen adi smoolsw yedi bloowinnon tont juodur Ingin Split gririch hon Laboulaye's hope that 14. attention to the achievements of the United States in abolishing* slavery*, nousbbs kaino 70090 1150i- grinamed af the French people would be inspired to create their own democracy in the face of a repressive monarchy. bas esmilet tad zestaze, 10 oupazom Isopilog, vavans, of bem clerfin unle Sculptor Frédéric Auguste Bartholdi, known for his large sculptures, was commissioned* to oversee* this di Aquouiry project. The goal was to complete the sculpture in 1876 to celebrate the United States' one hundred years di Jos blod's Houd (a) unorius sail of roomi sibling testtorianiom is gnivig ostil vilicujos ar egys from the United Kingdom. The statue was designated as a national monument in 1924. of 15. viable bom99009 abolish slavery # commission E oversee T 11. (A) this statue locates (B) lay this statue 1 (C) does this statue stands (D) stands this statue 2956i ording ai des d E URED ) (C) which presented (B) to be presented (D) 12. (A) presenting inddsuorit broide and it hort com 2 2000, otel odt or lord catch online nedur to (D) in competition with (C) in celebration of (B) within reach of tol s bening hot blow art (C) 13. (A) close to (D) calling onionat ajoubora waeng no nose od me big wor (B) called (C) 14. (A) calls (D) continent 2996iq wildung jedin bas ellow zeitsleg mis mebom odil 250 lg di 20 low as adored of guidiola moti Tentsio 195712 2011 20200 102 10emerlo brusesse o sbuloni among billing nommo * om III. X vins Dooq (C) by calling (B) ) 15. (A) colonization (B) independence (C) removal : 20% beralamos e on (D) presented o 129 mist (B) annual nam abse (C) short of dito (D) matchmaking (E) keep up consoreilebac

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