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5. 下列各種情形中,熱主要由哪一種形式傳播?甲.手靠近燈管感覺熱乙.用平底鍋將蛋煎熟丙.冷氣機裝在房間上方 (1)傳導 丁.棉被被太陽晒得暖暖 的戊.鐵湯匙放在熱
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5. 下列各種情形中,熱主要由哪一種形式傳播?甲.手靠近燈管感覺熱乙.用平底鍋將蛋煎熟丙.冷氣機裝在房間上方 (1)傳導 丁.棉被被太陽晒得暖暖 的戊.鐵湯匙放在熱湯裡變燙了己.燒開水時整鍋 水都沸騰了
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X(A)物質X匱乏時,冰棒即是美食☆ →...
上一篇 :
【題組】(3) (A)甲.通過後, 地面氣溫會降低(B)乙.陰雨連綿的天氣(C)丙.通過後, 地面氣溫會升高
下一篇 :
【題組】(2)冷瓶有煙,冷瓶在上。 (A)甲.冷氣機(B)乙.電暖器
資訊推薦
【題組】(2)氣溫計的液柱隨氣溫變化上升或下降(A)甲.氣體 (B)乙.液體(C) 丙.固體
【題組】(3)腳踏車輪胎在夏天打太滿容易爆胎(A)甲.氣體 (B)乙.液體(C) 丙.固體
【題組】(4)冰過的罐頭打不開時,在金屬瓶蓋上覆蓋熱抹布。(A)甲.氣體 (B)乙.液體(C) 丙.固體
【題組】(2)奶油加熱會熔化(A)√(B)O
【題組】(3)雞蛋加熱變荷包蛋(A)√(B)O
【題組】(4)熱熔膠受熱熔化(A)√(B)O
【題組】(2)接續上題,天然橡膠的硬度隨環境因素變化後,其性質並不會改變,這種現象的發生原理與下列哪一項相同? (A) 鐵接觸水後生成鐵鏽 (B) 砂糖溶解在水中 (C) 木材點火後燃燒成灰燼 (D)
【題組】(3)在天然橡膠中加入哪一項物質後一併加熱,能夠改善其硬度易受環境因素影響的缺點? (A) 小蘇打粉 (B)硫磺 (C) 食鹽 (D) 石墨。
【題組】(2)下列關於冰雹的敘述,哪ㄧ項是不正確的? (A)在積雨雲中形成 (B) 是固態的 (C) 落地時的形態與雪一樣(D) 每一顆冰雹的體積大小都相同。
1. 關於坐標平面上函數y=sinx和 兩圖形之交點個數,下列選項何者正確? (A)交點的個數是無窮多 (B)交點的個數是奇數且大於10 (C)交點的個數是奇數且小於10 (D)交點的個數是偶數且大於
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3. Don’t give up, and try to ______ the difficulties. Things will become much better gradually.(A) r
4. In our class, we have two boys ____ are both named Kevin.One is good at math and science; the oth
5. The waitress ____ Kelly is chatting with _____ from the UK.(A) × ; comes (B) that ; are (C) who ;
6. Have you ever been to Bei-Tou? Do you know it is _______ its hot spring?(A) made of (B) painted b
7. Is there _________ about the party? B: Yes. And the food there is yummy.(A) special anything (B)
8. A: Why the long face? You look _______. B: I don’t want to _______ my parents _______, but I fail
9. The puppy ____ short legs is Mark’s. It is often seen in his garden.(A) which have (B) which havi
10. London is a city in England _______ many people live and work.(A) in which (B) where is (C) that
11. We just saw a man and a dog ____ passed by the post office this morning.(A) they (B) which (C) t
12. Elsa: Kate, do you mind closing the door for me? Kate: _____________ I feel cold, too!(A)Never s
13. The dogs which are running after the mailman are Helen’s. It means ______.(A) the mailman is run
14. Tina is a teenager ________.(A) who are tall (B) that are my classmates(C) who likes reading (D)
15. Which is correct?(A) I saw a boy and a dog which were jogging around the park last night.(B) Tha
16. Which is correct?(A) That we wrote to our teacher moved her. (B) I really don’t know where am I