年級

科目

問題的種類

自然 國中

51題求解 急~

請閱讀下列敘述後,回答 50. ~52. 題: 今天是慎平國中的校外教學日,學校安排學生去參觀消防分隊,認識消防安 全的重要性。楨育當天看到了消防車的灌水演練、消防員的緊急出動、雲梯車高空 救人、消防員的緊急救護、車內失火的緊急逃離、室內火災的模擬、火災現場的科 學原理……等,如圖(三十九)所示。讓禎育覺得消防員的工作內容多且辛苦,真是 令人敬佩,其中也學到很多科學知識,不再認為只是拿著超大水槍去灑水,嚮導消 防員也說因為其中原理太多,一般民眾無法理解,所以在火災現場逗留,更是去干 擾消防員的工作。 消防局 田田田田 SO II 119 圖(三十九) = . 0.5 = txt As 50. 禎育在參觀車內失火的緊急逃離課程,教 o.skyn 500 gw 災時,如果出口被堵住無法順利逃離,可」 官還作勢要用拳頭擊破車窗,當然教官是 作弄 b 的旁邊有一個叫做車窗擊破器,如圖(四十 500x]; t00 (C) 窗戶的四個角落敲下去,就可以讓窗戶順, 《六:不 擊破器要將此窗戶擊破所需施力為多少公 (A) 0.05 公克重 (B) 0.5 公克重 W (C) 5公克重 (D) 50 公克重 圖(四十) 1 ( A 雲梯車載著消防員到6樓高的地方去灌水救火,火勢稍微變小後,卻看到9樓的窗 「戶冒出火焰,需要緊急滅火。消防車裡的水經由本身的加壓馬達將水加壓,以利送 Eocery Cin? Cors= 51, forestyan 0.8=701 arxay=7 C: 3 h到更高的地方,加壓馬達的最大輸出水图 2800kgwumi,現場大樓的每一層樓都 為3m高,試問消防水線能否到達9樓救火呢? (A)能,水線最高可到達10樓 (B)能,水線最高可到達11 樓 (C)不能,水線只能到達7樓 (D)不能,水線只能到達8樓 2m B 52. 當天氣壓為 lam,消防車水箱見底,又因為地處偏遠找不到消防栓,村長說附近有 一口井可以抽水來救火。目前井水水面離井口2公尺深,井口面積約2m,抽水馬 達可以將井中氣壓降到0.2atm,試問抽水馬達可以抽取約多少m?的水來用? (A) 10m (B) 13m

待回答 回答數: 0
自然 國中

為何19題的B不可選?

Ito a baseball varne. so | 18 ~ 22 D) The part of your body Chat you sit on.) Y you lose them. 18. - had houses. If 上有有錢人有,那一般就继子不会有 Do you like to go to libraries? Libraries are gateways to knowledge and culture. You can borrow all kinds of books for free. You have to pay only if your books are overdue or things didn't go that way years ago. In 1900, people 19. books because they were expensive. Only rich people had their own small libraries in their f you were one of their friends, you got a chance to borrow books. A few places had libraries, but the borrowers had to pay for them. Thanks to Andrew Carnegie, one of the richest men in the world, more and more public libraries were built./ He not only 20. to help the poor and the working-class Americans but also helped build 2,509 public libraries. The reason why he helped build so many libraries was that building free libraries 21 his dream. He was born into a poor family in 1835. When he was young, he always made good use of time and threw himself into his work and reading. He strongly believed 22 to be born poor didn't mean that one would always be poor. Everyone could become better by reading. And because of his large and kind donations of money, many places in America have free libraries now, and more and more people have a chance to get more knowledge. culture it overdue reason 2 donation til 不定詞營主 a gateway HD v. FOREVER (1) 18. (A) However (B) Besides (C) Also (D) After all 19 (AS hardly 447 (B) hard APE (C) harder D) most hard 20. (A) became well-known (B) gave a lot of speeches ) (C) gave away a lot of money (D) built a lot of factories X 21. (A) has always been (B) is always (C) will be always X (D) had always been 22. (A) if (B) that +S+U+0. (C) what +S+V. (D) whether (後接的 that 14 FEBRERO Ithe thies which+39 +30 61523, o 将其中的语学不会太长,因 what 本身就是再负弱 2022/4/24 12:11

已解決 回答數: 2