年級

問題的種類

自然 國中

想問問31,35,39 謝謝👀🥹

A 37圖()是在嘉義觀察一年中大陽運行軌跡的變化。在6月22日春天,豔陽高 照,住嘉義的小傑騎著 Gegero 電動車去圖書館,在上午10點左右抵達,預 計下午2點離開。有遮棚的機踏車停車場如圖四所示。已知甲、乙、丙、丁 為四個空的停車格,小傑為了避免在圖書館的這一段時間陽光照射到電動 車,他應該選擇哪一個停車格最適當? 春分、秋分 冬至 丁 12 西元 的一次 依此圖 ^ (A)地球 (B)火星 (C)火星 (D)火星 西 南 4.3. 由下交 北 甲 甲 圖(四) 圖(三) (A)甲(B)乙(C)丙(D)丁。 38. 將一條均質、長型、延展性佳的金屬甲串接一個燈泡,如 右圖。若將金屬甲採用下列哪一種方式處理之後,再接回 電路,會使燈泡的亮度增加? (A)長度剪去一半 (B)長度增加一倍 (C)厚度剖面切掉一半(D)連接方向反轉。 甲 燈泡 電池 BB 將一顆石頭置於裝滿水的杯中,如右圖。若不斷地從杯中 將水抽出,下列有關石頭浮力變化的敘述,何者正確? (C)逐漸變小 (D)逐漸變大。 D (A)甲 '44 右圖 (A)右中與城 (A) (A)先不變,再漸大(B)先不變,再漸小 水抽出 1) 40. 逸萱在實驗室進行下列四個實驗,已知這四個實驗都會產生氣體,請問哪一 個實驗所產生的氣體種類與其他三者不同? (A)雙氧水+二氧化錳(B)以碳棒電解硫酸銅水溶液 (C)氧化汞照光 (D)鎂帶+鹽酸。 41. 利用右圖的裝置來做「人造雲實驗」。首先,寶特瓶內 裝有少許水及線香白煙,藉由打氣筒向瓶內打氣增加瓶 內壓力;待瓶口橡皮塞被瓶內壓力推開造成氣壓急劇變 化,使水蒸氣凝結。關於此實驗,下列敘述何者正確? (A)在裝有少量水的寶特瓶中加入少許線香白煙,主要目 的與人造雨作業中在雲層灑凝結核的原理相同 (B)寶特瓶底加入少許水的目的是在收集降水 (C)打氣將寶特瓶中的空氣加壓,白色的霧狀小水滴即可形成 打氣筒 寶特瓶- (D)寶特瓶口的橡皮塞因加壓彈開,瓶內空氣與外界空氣因冷熱混合而形成白 色的霧狀小水滴。 1題組 竹 (C 廣泛, 竹子會 子開花 ✓ 45 46 D₁ 3 自然科 2024.05.16 21:42

已解決 回答數: 1
英文 國中

第41題為什麼不能選B??

(39~41) 1 Magic Blade Does the water on the floor after taking a shower give you a headache? No worries anymore. With a Magic Blade in hand, you can easily sweep the water away and keep the floor dry and clean. No need to change to another pair of plastic slippers when you step into the bathroom. What's more, a dry floor is safer for old people at home. It is less likely for them to fall down in the bathroom. What are you waiting for? Pick up your smartphone and click the website below. We can send the Magic Blade to your look house in 2 days. Click here www.magicblade.com Magic Cleth Find a lot of hair on the floor? For a busy mother with daughters with long hair, it is not a good idea to sweep the floor every day. We know you are too tired of it. Now, here comes our Magic Cloth. You just need to put it on the floor and draw some circles on the floor. Now, all the hair is cleaned away with the Magic Cloth. If you have dogs or cats at home, the Magic Cloth is also useful for you. Take out your smartphone and make a call to us. We will send the Magic Cloth to you in 2 days. Twelve pieces of Magic Cloth in a box only cost you NT$99. Buy two boxes and get one box free. Magic Cloth: 02 2233-XXXXX 39. Who are the two ads mainly for? (A) Doctors. (C) Old people at home. 40 What does Magic Blade look like? (B) Housewives. (D) Cat lovers and dog lovers. □ mainly 主要地 (A) (B) (D) 41. What can we know from the two ads? (A) A Magic Blade is cheaper than three boxes of Magic Cloth. (B) Both of the Magic Blade and the Magic Cloth can be bought online. (C) You can get 20% off if you buy a Magic Blade and two boxes of Magic Cloth. (D) If you place an order for Magic Blade or Magic Cloth, you would get it in less than 3 days. 英語2-14

已解決 回答數: 1