学年

教科

質問の種類

英語 高校生

(3)について答えはthese new types of cementまたはnew types of cement ですがthe new types of cement でも大丈夫ですか?

6 2019年度 英語 Ordinary Portland cement-t produced by baking lime in a kiln and emits approximately one ton of carb a kiln and emits Cement production is responsible for cement. dioxide for every ton of approximately 5% of global man-made CO2 emissions, according to the World Business Council for Sustainable Development. Cement does absorb some carbon dioxide back from the atmosphere over time, One 2016 study estimated that between 1930 and 2013, the equivalent of 43% of CO2 released from lime during heating was reabsorbed by - although that percentage does not include carbon concrete products worldwide dioxide emitted by the fossil fuels burned to heat kilns, a significant contributor of says. Fennell notes. 東京医科歯科大前駅 - the most common form in concrete- CO2 emissions during production. Unfortunately, this absorption comes at a price, particularly when cement is used in structures that feature steel reinforcement bars (rebar) within concrete. vl(As) CO₂ moves through cement it changes the pH of the surroundings, Fennell says. Concrete loses its alkalinity and, when moisture and oxygen are present, causes the rebar to rust. 2) ad "Rusting steel can expand with great force to as much as nine times its original dimensions if you add up all of the layers of iron oxide," says Randolph Langenbach, an international consultant in building conservation. This expansion causes the concrete to crack, flake and crumble. Svi aft ni adosband huma Degradation is a massive concern, he argues, and problems are not limited to rusting rebar. Everything from air pockets left in the concrete mix when it's laid to salt air buffeting coastal-facing walls, or the use of beach sand in the concrete, can shorten a building's lifespan. As one specialist once put it to Langenbach: "If it ain't cracked, it aint concrete."qubong ao yas guidtyns ogde stornos 90 s of fshoqml is vatns mash *** long llopsd lust ay to Given the concerns about the environmental impact and structural longevity of concrete, why do we continue to build with it? addi Simply put, concrete is cheap, versatile, quick to erect and requires no of weight J

未解決 回答数: 1
英語 高校生

空欄の所と間違えているところ教えて欲しいです🙇‍♀️🙏

6 分詞 (LESSON 14-15) 評価問題 氏名 ()から適切な語句を選びなさい。 ( 3点×4=12点) (1) This is a picture of a bird (drink/drinking/drunk) water from a pond. (2) We were (surprise/ surprised/ surprising) at her colorful dress. (3) The old man sat on the sofa with his legs (cross/crossing/ crossed). (4) My sister had her hair (cut/cutting/ to cut) by my mother. [ ] の動詞を適切な形にして、英文を完成させなさい。 to music. (1) Mike reads a book, listening (2) They left the gate Closiny all day long. (3) The picture (4) The boys kept Painted by Emma is very beautiful. Playing the computer game for hours. 13 ( )の語句を並べかえて、 英文を完成させなさい。 ただし、 下線部の動詞は適切な 形の分詞にすること ( 4点×5=20点) (1) (someone / in / there / of / is / front / wait) the door. There is someone wailing in front of (2) (got/cell phone/I/repair/my) yesterday. ( 4点×4=16点) [listen ] [close] [paint] [play] I got refailed my cell phone (3) We (the shop/ be baked / we / apple pies / at ). We (4) (a new restaurant/found/drive/he/ the car,) near his home. Priving the cat he found a new bestrant the door. /100 yesterday. near his home. (5) Ann watched (her cheeks/run/the movie / tears/down/ with). Ann watched the horie running dan with her checks teats ④4 次の各文の誤りを訂正して、全文を書きなさい。 (1) その眠っている赤ちゃんは私の息子です。 The baby sleeping is my son. The sleeping baby is my soul (2) 先生は彼の生徒たちに囲まれて座っていました。 The teacher sat surrounding by his students. the surrounding teacher sat by his students (3) お父さんに叱られたので、その女の子は泣き始めた。 Scolding by her father, the girl began to cry. Scolding by her father the girl began to ch (4) 彼女は車をそのホテルに駐車したままにしておきました。 She left her car park at the hotel. 5 次の日本語の意味に合う英文を作りなさい。 (1) 彼女は皿を洗うのに忙しかった。 (6点×4=24点) she was busy washing the dishes (I で始めて) I heard my brother singing the song (his で始めて (2) 弟がその歌を歌っているのが聞こえました。 (3) 彼のスピーチは退屈でした。 His speech was boring ( 6点×3=18点) 6 あなたが何かをしに行って, そのとき感じたことなどを3~4つの英文で書きなさい。 (5点) 会話の最後に入る気持ちを自由に考えて書きなさい。 A: The university entrance exam is coming up soon. B: I'm getting nervous. I don't know if I can pass or not. A: (5

未解決 回答数: 1
数学 高校生

なぜ、b≦0とb>0で場合分けをするのですか? b<0とb>0ではだめなのですか? またb≦0だった場合、b>0のような場合分けの仕方はしないんですか?

107 2次関数の区間における最大・最小 74 [精調]] con 100 226 127 (D) を(0) 242/2alb(2P1) とおく。 区間15分 で場合分けをすることになります。 一方,650のときにはグラフは上における 放物線か直線になるので,次の事実を利用できます。 (一般にup(z)のグラフが区間:amzbにおいて、上に凸(ある。 は線分) であるとき, が成り立つ。 解答 uf(t) のグラフを考えましょう。 もりのときにはグラフは に凸な放物線ですから,軸と区間 -15E1の位置関係によっ TEBVC g(x)=0 "g(a)20 g(b)20" が成り立つ。また、1において下に凸(あるいは線分) であるとき, において g(x))"g(a)=0 かつg(b)≧0" f(t)=2+2√/2at+b(212-1) =2612+2√2at+2-b である。 ( b>0のとき において, "-1≦t≦1のすべてのに対して f(t)≧0である”.....( * ) ためのa,b の条件を tu 平面における u= f(t) ...... ① のグラフを利用して求める。 (i) b0 のとき b<0 のとき, ① は上に凸な放物線であり, b=0 のときは直線であるから, * 20 f(-1)≧0かつf(1) baya-2かつb≧2√2a-2 #est both とかでは ないのし F(t)=20(1+2)²-²+2-6 WA SH 1 bitt u=f(t) 95²

回答募集中 回答数: 0
英語 高校生

答えに解説がなくて困ってます。 下の長文を翻訳してください。

〔Ⅰ〕 次の英文を読み. 設問 1~21 に答えよ。 Sandy lives in an apartment so small that when she comes home from shopping, she has to decide what to move out to make room for her purchases. She struggles day-to-day to feed and clothe herself and her four-year-old daughter on money from freelance writing jobs and helping neighbors. (2) Her ex-husband has long since disappeared down some unknown highway, probably never to be heard from again. As often as not, her car decides it needs a day off and refuses to start. That means bicycling (weather permitting), walking or asking friends for a ride. 13 The things most Americans consider essential for survival- a television. microwave, big freezer and high-priced sneakers are far down Sandy's list of "maybe someday" items. (5) Nutritious food, warm clothing, an affordable apartment, student loan payments, books for her daughter, absolutely necessary medical care and an occasional movie eat up what little money there is to go around. Sandy has knocked ) more doors than she can recall, trying to find (7) a decent job, but there is always something that doesn't quite fit-too little experience or not the right kind, or hours that make child care impossible. Sandy's story is not unusual. Many single parents and older people struggle with our economic structure, falling into the gap between being truly self-sufficient and being poor enough that the government will provide assistance. What makes Sandy unusual is her outlook. "I don't have much in the way of stuff or the American dream," she told me with a genuine smile. "Does that bother you?" I asked. "Sometimes. When I see another little girl around my daughter's age who has nice clothes and toys, or who is riding around in a fancy car or living in a fine house, then I feel bad. Everyone wants to do well for their children." she replied. "But you're not angry?" "What's to be angry (9) and I have what is really important in life," she replied. "And what is that?" I asked. (10) "As I see it, no matter how much stuff you buy, no matter how much )? We aren't starving or freezing to death. (11) money you make. you really only get to keep three things in life." she said. "What do you mean by 'keep?" (12) "I mean that nobody can take these things away from you." "And what are these three things?" I asked. "One, your experiences: two, your true friends; and three, what you grow inside yourself." she told me without hesitation. (13) For Sandy, "experiences" don't come on a grand scale. They are so-called ordinary moments with her daughter, walks in the woods, napping under a shady tree, listening to music, taking a warm bath or baking bread. Her definition of friends is more expansive. "True friends are the ones (15) who never leave your heart, even if they leave your life for a while. Even after years apart. you pick up with them right where you left off, and even if they die, they're never dead in your heart," she explained. 16 ) to each of us. (17 As for what we grow inside, Sandy said, "That's ( isn't it? I don't grow anger or sorrow. I could if I wanted to, but I'd rather not." "So what do you grow?" I asked. Sandy looked warmly at her daughter and then back to me. She pointed toward her own eyes, which were shining with tenderness. gratitude and a sparkling joy. "I grow this." From the book Chicken Soup for the Woman's Soul by Jack Canfield. Mark Victor Hansen. Jennifer Read Hawthorne, and Marci Shimoff. Copyright 2012 by Chicken Soup for the Soul Publishing, LLC. Published by Backlist. LLC. a unit of Chicken Soup for the Soul Publishing. LLC. Chicken Soup for the Soul is a registered trademark of Chicken Soup for the Soul Publishing, LLC. Reprinted by permission. All rights reserved.

未解決 回答数: 1