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問題的種類

英文 高中

想問20題的ABC要如何判斷 謝謝

20 E 20 M 超 Over the past few years, three-dimensional printing, or 3D printing in short, has slowly but surely been brought into focus in the world of industry. The technology is 16 on automated machines, which put down many thin layers of materials, such as plastic, metal and concrete, on top of each other to create objects in a bottom-up manner. Simple 17 the mechanism of the technology seems, it has been widely used in creating specialized items and delicate parts in the manufacture of a variety of industrial products, ranging from automobiles to medical devices. But now, some startups have been experimenting with the idea of building structures with the aid of 3D printing by making wise use of its inherent advantages. The employment of a 3D printing system can 18 reduce construction costs by up to 30 percent. In fact, parts of the costs cut down actually result from the removal of nearly all building waste in the constructing process, which can save up to three tons of carbon per home. 19 with the 3D printing technology, houses can be produced at two times the rate of traditional ways. The productivity of a standard 3D printing system is estimated to be roughly equivalent to 20 of 20 workers in several different fields combined. After all, machines, unlike humans, can work 24 hours a day nonstop. 0 16. 7 (A) sufficient (B) insistent (C) consequent (D) dependent Dcuso (B) but (C) while (D) though 130 hp 18. (A) barely (B) randomly (C) significantly (D) intentionally 19. (A) In addition (B) As a result (C) In short (D) On the contrary 20 (A) which (B) that (C) those (D) what BA 三、文意選填(占10 分)

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化學 高中

想請問19的BD 答案是ACD 熱固跟熱塑要怎麼判斷? 還有 雖然知道溶於鹼性可是不知道加熱能不能..

號: 買 化學科 共8 设 19. 聚碳酸酯(Polycarboilate, PC)是一种酒、耐繫、隧但不耐飽的塑膠材質,生活中 常應用於製造 CD/VCD 光碟片,嬰兒奶瓶、智慧型手機的外殼等;特别要注意的是,此種 材質製成的物品不可使用次級酸钠或其他磁性清潔劑來沖洗,因過程中會釋放出雙酚A, 她而影響生體系統。工業上使用塑腳A(莫耳徵盗=228)與碳酸(莫耳質量=62)進行蹤 合反應來跟验碳酸脂。下列有關此物質與 反應的相關敘述,哪些正确? CH CH3 HIHO… -0-C+OH+-(2n-1)HO -OH+nO-C-OH -> H+o- 融融 CH3 CH3 WA 戰地醫 上述聚合製程屬於力加戏验合照 (B)聚碳酸脂關於發、繳固性的共聚物 C塔 in 超過 Silho,則上述反應的原子和經濟約為93.8% D將奶瓶置於高溫或鹼性溶液中,雙酚A易水溶出 (1)欲檢驗奶是否溶出雙酚A,可加人 Treelated] 来檢測 自游 石圈上 「相認 【解密 20. 串聯兩個館解槽烈,電解槽以作為電婚, 寬液為1.0 M AgNO3(aq),電解槽C則分別以粗制與調 岁團 梯作為婚,液為1.0 M Clus(34fung,建披直流喧源 進行電解電郵裝置如圖 4. 細嘴一段時間後,下列敘 述哪些正確? KA短腿n E胆的药城小 33万腿b幅與綢棒的電量增加 (CAM銳解槽中金離子濃度均不變 D石腿u 能極表面有氣體產生,,,附近的溶液偏酸性 (B)解析出眼與電解槽析:觀的莫耳數比為1:2 AgNO (1) 肥胖 CUSO (6) ” 题解 圖4 21、22. 題為題目 锅是火氣中含圈最令的氣體,占据媒空氣成分的79%。是生命體中非常重要的元素, 包括蛋白與核發等都會有,自然界中氮的化合物非常多,包括觀規化物、銨、硝酸鹽 及硝酸等。氨的電負度與额的留信度相當,化合物和類也非常多,但大類中的氮氣带安 定,很難度梵微生物吸收利用,必須依賴自然界中的固氮作用,轉化為含氮化合物才能被植物 吸收u 哈柏法製氨是人工國的主要方法,將象额奥氮氣合成氨,氯較容易被氟化成類化 物,並製造出各種念,目前全球生遂的,有85%用於製造,每尿素、硫酸驗, 灣戲政。 级是道要的化工原料,索米法(Solvety process)製造碳酸與碳酸盐的的過程也利用 參與反應,只是可以重複使用,幾乎沒被消耗掉。国未法是將二氧化碳與通人食鹽水 中,主要反應如下:

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