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下列何種性質可用來區分純物質與混合物?
以下屬於物理性質為哪幾項? 甲.汽油會揮發變成氣態 乙.木炭具可燃性 丙.糖溶解在水中的情況 丁. 蛋殼和醋反應產生了氣泡 戊.腳踏車淋雨生鏽 己.水結冰體積膨脹
老師請五位同學測量同一個書櫃的寬度,五位同學的測量結果如附表,用平均值的概念,表示該書櫃寬度 的測量結果何者最為適當?
大廚烹煮燒酒雞時,常常會在鍋中加入一些米酒後隨即加大火用力翻炒,此時鍋中酒精受熱變成酒精蒸氣 並燃燒,使鍋中冒出熊熊火焰,也會先聞到濃濃的酒香。下列相關敘述何者錯誤?
附圖為小孟以排水集氣法進行兩組氣體製 實驗一 實驗二 備實驗的示意圖,她在實驗一和實驗二開始 反應後,就立即以廣口瓶(所使用的廣口瓶 規格都相同)收集從橡皮軟管冒出的所有氣 體,且實驗一先以甲廣口瓶收集,再以乙廣 口瓶收集,實驗二先以丙廣口瓶收集,再以 丁廣口瓶收集。完成實驗後,甲~丁這四個 廣口瓶中的氧氣含量多寡關係,應為下列何 者?
附圖為50圓硬幣以直尺及三角板測量直徑的示意圖,下列四個測量值,何 者結果不合理?
傳聞服用鷺江牌勇壯丸有助肌肉增長,而且每日服用量越多,效果越顯著。好奇的豬農小楷為證明傳聞是 否屬實,決定以家中所飼養的仔豬作為實驗對象,試問下列何者為非其控制變因?
What can we NOT know about supermarkets from the four people?
How many people above like traditional markets?
Roy just moved in a new house. Which is the drawback of living there?
According to the reading, what SHOULDN’T people have too much when they have the bread?
Kevin: I need a pencil to write down the notes. Can I borrow _______? Sam: Sure. Here you go.
Jack: Are those erasers yours? Bonnie: No, they’re not _______. I didn’t bring my pencil case today.
Sam: Is Linda’s brother, Jay, in your PE class this year? Tina: Yes, and _______ is a good soccer player.
My favorite subjects are math and science, but _______ are history and Chinese.
Peter: _______ a lot in Taipei last summer? Yuki: Yes, it was rainy and hot.
_______ Mr. Johnson left his family, he went to India. I don’t think it’s easy to find him in other countries. left 離開
Judy: I _______ a postcard to you from Australia. Did you get it? Zac: Yes. I waited for it and finally got it yesterday.
Betty: Hey, I have some coffee in the kitchen. Do you want a cup of coffee? I can _______ you one. Alan: Thanks. That would be great.
Cody loved video games a lot, so his father _______ a computer for him as his thirteen-year-old birthday gift.
Miss Parker usually gives us a lot of history homework, _______ she didn’t give us any today. That’s strange.
Mr. Bieber: How’s the weather in Quebec City? Ms. Kato: Well, it’s _______ in the morning but gets really cold at night.
Eddie: Hello, this is Eddie speaking. Is Rita there? Ruby: _______
Nina: You’re on the school basketball team. Do you practice basketball every day? Zac: Not really. I don’t have basketball practice _______ it rains.