年級

問題的種類

英文 國中

想問打星號的題目 還有第6 19 26 37題為什麼不能選那些選項 🙏🏻🙏🏻🙏🏻

mine Hers Hers 7. 祈使 Answ The kids BAT eat a lot of meat like beef and pork, but they don't now. (A) usually (B) are able to Hank's family plan (C) used to (D) seldom his thirtieth birthday with a party. B (A) celebrate (B) to celebrate 8. Some of the cake in the box (A) tum (B) turns (C) turning 9. Everyone in my class (C) to ask (C) celebrating (D) celebrates Some 接不可數名詞 black. You should throw it out. (D) to turn Nina to play the violin for them. (D) asking me put on my sweater because it was hard for me to put on. (C) had (D) helped 11. Ms. Wang had all her children Wak Spea Mak (A) asks (B) ask Mal 10. My sister Dri (A) let (B) made If y B (A) clean If! Sta B" A 使 B A (B) to clean (C) cleaning 12. His parents drive him to school, but (A) my Elva looked (B) mine (C) I the beach last weekend. + V or adj. (D) cleaned (D) me don't. I walk to school every day. at the T-shirt. There is a picture of her favorite baseball player on it. (A) happy (B) happier 14. The music sounds (C) happily (D) happiest Please turn it off. I want to take a rest. (C) noisier (D) noisiest (A) noisily (B) noisy 15. She had a sore throat, and the doctor (A) asked (B) made (C) let 16. Clerk: The pink dress is great. (D) had her to drink more warm water. ask + to v Linda: I don't like pink. May I try the black (A) another (B) other (C) one (D) the other My cousin gave me several skirts, but I only need the purple one. Would you like to take (A) ) another (B) other one (C) ones (D) the other ones 18. It almost killed Kevin to take care of his baby sister for one afternoon. He wondered how his mom could every day. B do Br 20 (A) her (B) it (C) one (D) them Ada: You all play soccer very well. Mia: of us are on the school team. (D) Each (A) Both (B) Most (C) One CL

已解決 回答數: 7
物理 高中

19題為何100要除3.6

◎18-21題為題組 汽車電池 飯 後輪電動馬達 前輪電動馬達 -充電座 36 10 -再生煞車 充電電線 70 圖1電動汽車結構圖 電動車是指使用電能為動力的汽車,有些國家或地區已經計畫 在未來十幾年後禁售燃油車,往發展電動車的方向前進。傳統燃油車 在煞車時皆是使用機械摩擦方式並產生廢熱散發於空氣中,煞車產生 的廢熱無任何利用,造成能量浪費,而電動車有電力再生煞車系統又 稱再生制動,如圖所示,可協助車輛煞車,並著重於能量的回收管 高 理。再生煞車系統的原理是將電動機切換成發電機運轉,利用電動機 內的轉子(轉動部件的組合體)旋轉而產生反轉力矩(汽車會減 速),將一部分的動能轉化為電能,並利用電池儲存電能,從而有效 地回收制動能量,延長汽車行駛距離。今對甲乙兩電動車進行行駛最大距離的測試,若在 70km/h 的行駛速率下,甲乙電動車的資料如下表所示。請根據上文,回答下列問題: 車輛 (甲) S E=FU Z Ema V Dax435 22 18750 電池容量(kWh) 88 60 行駛最大里程數(km) 320 420 車重(kgw) 2500 1600 sť FS mas W st= To= "st mvs 256x70x320 4218 18. 若提供220V的充電電壓,將車輛甲的電池從電壓為零到完全充飽至220V 歷經10 小人QQ 時,充電所需的最小充電電流為多少A?(提示:電功率P的公式為P=IV,其中I為 電流、V為電壓。) (3分) E=PC 88(kWh)=(IV)xt 25x2032 220 IT 21 6025 22 " 240 188x103 1 X 220 (A)10 (B)20 (C)30 (D)40 (E)45。 I= 220x103040 ABLE49. = IX220X10 1650 下表是有關電動汽車的其他訊息: W P=st W=5-5 325 ㄡ D 車輛 從速度為零加速到時速100公里所需時間(s) 甲 975 16505 峰值功率(kW) 乙 5.5 6.5 300 19-2 150 10 stat 2-1.5x2 已知車輛的能源效率=加速期間的輸出平均功率/峰值功率,若電動車甲與乙,從速度為 零加速到時速100公里的過程,下列敘述哪些正確?(應選3項)(4分) 250 19 300 300 3 072- (C)甲車的平均加速 (A)甲車的能源效率<70% (B)甲車的能源效率>乙車的能源效率 度>乙車的平均加速度 (D)甲車於時速100公里的動能約為965kJ (E)乙車於時速100 公里的動能約為965kJ。 192 70x88x 407 4. 頭上受池的亚均輸出功率為多少 FS

尚未解決 回答數: 1
英文 高中

我想請問第一題 為什麼不能是(B)的被動式 那(C)的repairing可以變名詞嗎? expensive形容詞後面接名詞

Are 33 a. Nowadays, cellphones have become a necessity in our lives. However, like other manufactured goods, they can be expensive (1) when broken. Considering how fragile some cellphones can be, they are usually used for a short period of time before being discarded without a second thought. They are also replaced as soon as new models become available. These factors have huge environmental consequences, which can only be effectively (2) by recycling. 因 完被 Ith 丟棄。 (3) has been repeatedly proven that tossing away unused electronics 再被證明 丟棄 不用の 電子產品 harms the environment. When burned or buried, the metal, plastics, and the 燒 掩埋 chemicals in cellphones release (4) pollutants into the land, water, and 釋放 污染物 +441 air. Once they're in the environment, they could cause serious damage to plants, animals, and eventually us. Furthermore, the resources needed to produce cellphones are obtained through mining, deforestation, and 採礦 砍森林 industrialization, all of which destroy the environment. 工業化 破采 These problems can be avoided (5) we recycle unwanted cellphones. Hopefully, by using recycled materials, we can better protect Mother Nature 但原願 in the age of consumer electronics. 材料 C2 De 2. (A) clustered 1. (A) to repairing (B) repaired (C) to repair (D) repairing ✓ 3. (A) This (B) bargained (B) So (C) recovered (D) addressed 處理 (C) It (D) Such BA 4. (A) pacific (B) toxic. (C) frantic (D) civic DB. 5. (A) as if (B) now that (C) in case (D) only if 21

已解決 回答數: 1