請問D為什麼不能選

( B)37. 37. Laura was eating breakfast then, and

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(B) & 附圖甲空量筒質量 125g D 為125公克,倒入沙 子後總質量為300公 150 mL -120 mL N 20 mL 175g 100g 甲乙 丙 克,沙面對齊120毫 升刻度線,如附圖乙;再注水於量筒後總質量為400 公克,此時水面對齊150毫升刻度線,而沙面對齊120 毫升刻度線,如附圖丙;則沙子的密度為多少g/cm²? 20 -100 =5000 (A)0.875 =50 (B)1.46 (C)1.5 (D)3.5。 175 D= = V 1.4.6 120= 1201250 复 100 A) 6.附表為三種金屬密度,取相同質量製成形狀、體積皆 CA 相同的銅球、鎳球及鋁球,則下列敘述何者正確? 金屬種類 銅 密度(g/cm²) 8.96 鎳 8.90 鋁 2.7 (A)銅球和鎳球必定是空心的,鋁球可能是實心的 (B)銅球為空心的,鎳球和鋁球則為實心的 (C)三顆球必定都是空心的 (D)三顆球必定都是實心的。 5 2 A M=VD 5 √ √ 8 轻骨 美姿利用上皿天平與砝碼組測量一串項鍊的質量,當天平 達水平平衡時,右盤中有10公克砝碼2個,1公克砝碼1個。若 將項鍊放入裝有20.0毫升水的量筒中,會完全沉入水中,且水 面上升至22.0毫升刻度線。試回答下列問題: 110 7.已知此項鍊由一種物質組成,則此物質最可能為下列何者? 物質 (A)金 (B)銀 (C)銅 (D)鋁

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,即為完全平方數 3 已知 2 進階演練 *為正整數,則滿足此條件的二位 數x有多少個? 【解

我這樣寫對嗎👀👾（八上文法宅急便）

(A) 18 【小試一下] (一)填充題 1. Before he eats pizza, he will wash 2. When I save enough money, I will take 3. After Joe knows about the fact, he Will everything about it. (二)翻譯填空 1. 在他來這裡之前,我會等他。 I will wait for him 2. 嬰兒一歲時,我將買給她一份可愛的生日禮物。 When the baby is one year old, I (W) will gift for her. 3. 完成她的自然功課後,她將打電動一小時。 •練習 She'll play science homework. (一)依提示作答 video games for an hour his hands. a trip to Japan for a week, call me up and tell me (C) V before he Come here. (B) buy A a lovely birthd after she finisher A A B F David will have free time tonight. (用 When 開頭合併為一句 ) He will go to a concert with Anna. When David have free time, he will go to a concert with 2. After Jim washes his hands, he will eat the pizza. (Before 翻譯 Anna Toni Before Jim eats the pizza, he will wash his hands. 1. 今晚吃晚餐後,我和我太太將在公園散步。(Mywife... will.... will...) My wife and I will go for a walk at park after dinner. 2. 這個週末有空時,爸爸將幫忙我的數學功課。(Dad will help with...) Toni Dad will help with my math homework when he has frec 學力模擬演練 單題(每題5分,共75分) 1. Mr. and Mrs. Smith did not know much about Taiwan when they beautiful island. this weeken 得分 ( ( to the (A) came (C) are coming (B) come (D) comes

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若要製造更多的氧氣,多添加二氧化錳即可 (D)點燃線香插入氧氣瓶中,線香會熄滅 題組 每題5分,共25分 溶質 溫度 10°C 60°C 80g 20g ↓ 迷糊的團團不慎把2g 氯化鈉和8g硝酸鉀兩種固體粉末混在一 起了,他查右表得知,此兩種物質在100g水中溶解度與溫度 高低有關,他打算藉由下列的實驗盡量將此混合物加以分離。 團團先將混合物置入試管內→經估算至少加水 Xg 並加熱至 60°C時,恰可將混合物完全溶解→趁熱將溶液內微量雜質過 濾並捨棄→濾液靜置冷卻至10°C→過濾管內析出的固體→經乾燥、秤重,得Yg的固體, 硝酸鉀 氯化鈉 35g 40g 試回答下列1、2題: (B) 1.關於X與Y之值,何者正確? (A) X = 15,Y = 10 (B)X=10,Y=6 (C)X=15,Y = 6 (D) X = 10,Y=10 B (D) 2. 最後剩下的濾液,對何項物質而言為飽和溶液? (A)僅氯化鈉 (B)僅硝酸鉀 (C)兩者皆飽和(D)兩者皆未飽和 質 【補充題】 原始位置

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46 康版國中自然2上 科主題 物質的分離 第2章複習 ^ 精熟 基礎 100~80分 79~60分 單題 每題5分,共75分 4 D(A) 待加強 59分以下 182790 得分 (A) )1 中央研究院的研究團隊,曾利用何種物質殺死整個蟻穴中的紅火蟻,方便快速又環 保? (A)二氧化碳 (B)乾冰 (C)氮氣 (D)液態氮 (B) 2 市售某廠牌飲用水,瓶上標示:每瓶體積 600mL 中,含 12.0mg 的鈣。依此標示,每 2(飲用水寝府

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2020年有位俄國網紅在慶祝生日時,為了降低游泳池水溫並炒熱派對氣氛,將預先準備 好的25公斤乾冰倒入池中。沒有想到,瞬間逸出的大量二氧化碳造成池中三人窒息身亡, 另有多人受傷送醫。 乾冰是固態的二氧化碳,昇華時會釋放氣態的二氧化碳。乾冰在冷凍保存的應用廣泛, 同時因為乾冰加入熱水中昇華融解時的煙霧效果,也被廣泛使用在製造舞台的特殊效果。二 氧化碳比空氣重,在局限空間或通風不良場所使用乾冰時,二氧化碳會沈降在低處及在局限 空間中累積,如果場所通風不良,蓄積的二氧化碳可能會造成人員中毒或缺氧。 大量乾冰所造成的危害,在台灣也發生過,多年前有場選舉造勢使用乾冰做效果,卻沒 有考慮乾冰濃度而造成意外。勞動部網站也因此公告提醒民眾:「一般空氣中的二氧化碳濃 度約為0.035%(350ppm),氧氣濃度約為20.9%。施放乾冰煙霧時可能造成空氣中二氧化碳 濃度升高或使局部空間的二氧化碳濃度超過15%,置換空氣中的其他氣體,使得氧氣濃度低, 18%造成缺氧窒息。 二氧化碳會造成酸血症,影響呼吸中樞,空氣中較高濃度二氧化碳能取代氧氣,造成缺 氧合併二氧化碳中毒。二氧化碳濃度小於2%尚未報告過對健康之危害;濃度到達7.5%,則 會造成心跳增加、頭痛、頭暈、流汗、燥動、失去方向感、視覺扭曲等;濃度超過10%,造 成呼吸困難、聽力喪失、噁心、嘔吐、窒息、流汗、數分鐘後精神恍惚,15分鐘內失去知 覺;濃度超過30%,則會造成迅速失去知覺、痙攣。 因此使用乾冰,應注意空氣中的二氧 化碳和氧氣的濃度,保持場所有足夠的通風,達到安全的範圍之內(二氧化碳濃度在 0.5%,5000 ppm 以下)。」 > 試回答下列問題: 1m²-1000d 1.假設實驗室長寬高大約是10x5x3=150 立方公尺約為50000 公升。 2.承上題,二氧化碳濃度佔2%,是允許安全範圍內。 此時二氧化碳約為 300 公升。 3.室溫下,44公克的二氧化碳約24.5公升(以25公升方便計算),上題所求的二氧化碳 約 528 公克= 0.528公斤。 4. 試解釋為什麼氣體 0.5%相當於5000ppm? 每百萬個單位中有多少單位是該氣體(ppm) 1%=10000ppm,0.5%=5000ppm (相當於) 4

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1 Yesterday, Mom took me to a street market. It was a cold day, but the market was busy. There were so many things to see, hear, taste, and touch. There was tasty food. There was a popcorn stall. The popcorn smelled good, but it wasn't sweet. It was salty. There was also a monkey. It played a drum. It was noisy and everyone laughed. The monkey was friendly and it sat on my head. It was so cuddly and soft. I wanted to take it home! By Eric Circle the correct words. What did Eric...? aolumisas allsme iswoft aidT dan1199 M 1. hear a baby crying a noisy drum people chatting 2 see tall trees a monkey alamos many people 3. feel cold weather a monkey a cuddly dog 4. taste sweet ice cream salty popcorn hot coffee one 16/0 22910 wen Tu

有人會寫英文短文嗎？

Get Ready to Write things. *識全集中 A Venn diagram can help you compare and contrast two different Ants How they are the same Bees • Live in • Black or brown •Can walk a long way • Birds like to eat them Insects • six legs Live in hives Yellow and black Can •Make e both popular. use a ball exciting How they are different Read the following report comparing ants and bees. Read again and complete the Venn diagram with information that tells you how ants and basketball 219 mod MS 89 and bees are the same or different. Introduction How they are the same How they are different Conclusion Ants and Bees nobuboun There are many kinds of insects in the world. All insects have six legs, but they can be very different. Two insects, which you can see everywhere, are ants and bees. Ants live in nests. Thousands of ants live together. Bees also live together, but they live in hives. Both ants and bees have a queen. The hard working queen lays many eggs. Ants and bees work very hard to find food and build their homes. But be careful because when they get angry, they can hurt you. yart worl hib Ants and bees are also different in many ways. Ants are usually smaller than bees and they are brown or black in color. However, bees are yellow and black. Bees can fly and eat from flowers. This food, which becomes honey, is delicious. On the other hand, ants often walk a long way to find food. Some birds and animals like to eat ants. As you can see, ants and bees are both very interesting no insects. They are the same and different in many ways. Which one do you like? IN LINE

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第二部分:非選擇題(1~2題) 1. 金突國十三年甲班共有15位學生,以下是某次數學測驗後,老師發考卷的經過: 這次考試,班上 有9個人及格。 而且所有同學的 成績情成等或數 列 你是及格的一 最低分。 我是61分 最高九十幾分 沒人一百分。 班上有人 100分嗎? SEN 若老師及格的標準是60分以上(含60分),且數學測驗成績皆為整數,根據灃 畫中的對話內容,回答下列問題: (1) 此次班上數學測驗的最高分是幾分?- 6193197 @. bayan anda and atadata d Licensed by Mediaiink (2) 此次班上數學測驗的平均分數是幾分?請完整寫出你的計算過程。 A₁ = 61 a-4d=61 95 = 61+4d = a