為什麼B是對的？ 🧐 詳解剛好沒有這個選項😢

C 10. 下列關於氫原子的敘述,哪些正確? b (A) 1mol氫原子電子由 n=5 降回n=2時,最多可發出 16 種頻率的光 (B)1個氫原子電子由 5p 軌域降回 1s 軌域時,最多可放出4種頻率的光 EB CBT 4-21 27 (C) 來曼系列中頻率最小者的波長與巴耳末系列中頻率最小者的波長之比值為 47332 (D)若n=4降至n=2所發出的光波長為,n=4降至n=3所發出的光波長為 2 n=3降至 n=2所發出的光波長為入,則 22 = (F) 能量高低為 4d'>4p> 3d > 4s > 3s 2₁+23 2 of 1 4 4 哪些正確 = 4

第4題跟第2題為什不是無限多組求解。

2、滿足{b,c,e} cdc{a,b,c,d,e)的集合A有 2x2 = 4 答:8 答: 個 設4是一個集合,且滿足{1,}CAC{1,2,3,4,5},且有4個元素,則集 合有 3.4,45,3.5 6.4-1.2.3. 答:3 4、d={1,2,3,4,5},XCYCZCA,設S={(X,Y,Z)|XCYCZCA},則 n(S)=. 答:1024

求解 想問BC

(C) DNA 日星為 2009 AG NET示口只(示已脰数了交 (D)DNA含量為100至200的細胞,細胞內的核膜皆已消失 -附圖為植物細胞生長的過程,將其與細胞週期的概念進行比對,何者正確? (A)甲到乙的過程必經歷了細胞膜往內凹陷 (B)乙到丙的過程必發生了同化代謝 (C)甲到乙到丙的過程僅經歷了細胞生長(D)人體肌肉細胞會持續進行甲到乙到丙的過程 題組]已知有絲分裂時,每條染色體的著絲點會連接紡綞絲,而紡錘絲會與對應的兩端中心體 甲: 2 DNA含量(相對量) 丙 O

植物根部與根瘤菌共生 根瘤菌在根內會特化為類菌體 題目有個錯誤的選項說：「類菌體是原核生物」 請問是錯在屬於細菌界嗎 還是有其他的錯誤 感恩

求解🙏🏻

本 g 3 (6)一輕彈簧的一端懸掛在電梯的天花板下,另一端懸吊一重物,當電梯以a=- (向上)加速上升時,彈簧的伸长量為S,則當電梯以a=(向下)加速下降 口路 時,彈簧的伸長量應為若干? S (A) 2S (B) S (C)- (D) 2 4 of tu 3 0202 (0) 4 (8) 2.0 (A) (E)。由平水的車小,關 d

請問c選項怎麼算 解答寫 設10X的目鏡測微器每小格為a um ->4a=5×10 但我不清楚4從哪裡來的

400X 時小(C)目鏡測微器每格所代表的長度,在放大倍率100X時,與放大倍 率400X時相同 (D)目鏡測微器每格所代表的長度,在放大倍率100X時,比放 大倍率400X時小。 C(B) 17. 使用10X目鏡、10X 物鏡作顯微測量時,看到的結果如右圖,則下列有關此實 驗的敘述何者正確?(上方刻度為目鏡測微器,下方刻度為載物臺測微器) 1 2 3 载玻片 (A)下方刻度中每小格為40 mm (B)將細胞滴在載物臺測微器上,觀察其對應的 格數,即可得知細胞大小(C)圖中的目鏡測微器每一格長度約為12.5 um (D) 以40X 物鏡觀察某動物細胞時,其直徑約等於目鏡測微器2小格,則此細胞直 10%→12.5um 徑約 25 um。 〔丹鳳高中〕 40X3.125μm 生物(全)-25

求解第七題為何用ing

S B Cute animal; she's also a symbol of hope for her endangered species. 6. A. truthful C. forgetful # B7. to DA A. to splash C. splashing 8. A. Similar with C. Aside from C9. A. bring an end to C. make the most of 10. A. wildlife A₁ C. privacy B. adorable 可愛的 D. portable 輕便的 B. splashed D. has splashed B. Instead of D. Thanks to 避難所 B. seek refuge in D. reduce the need for I 閱讀能力測驗:閱讀理解 B. border D. consumer H 18

求解🙏🏻🙏🏻

2.右圖為真核生物內之粒線體與葉綠體進行化學反應之簡圖,在 葉綠體進行反應甲,粒線體進行反應乙,下列敘述哪些正確? (應選3項) Or E (A)反應物甲和產物乙可為相同物質 (B)產物和反應物乙可為 相同物質(C)粒線體會消耗有機物,葉綠體會合成有機物 (D)植物細胞在夜晚進行反應乙而不會進行反應甲,在白天進行 反應而不會進行反應乙(E)產物甲和產物乙不會是相同物質。 反應物甲反應, 葉綠體 [產物甲 粒線 產物

求解，謝謝！！

2. Grandpa fell asleep on the sofa with a newspaper_ (A) covered (B) to cover his face. (C) to be covered (D) covering

想問第四題（答案是F)，但為什麼have後面可以加原型動詞？

(A) however (F) come up with (R) issue (G) provide (C) rise above (H) geographical (D) installed (E) as a result () financial (()) at risk of Zhang Jiawan is a small village in southern China. With only one hundred residents*. 1., the children there have to go to another it is too small to have its own school. 2. makes this journey quite difficult. This is location. The village sits on top of a mountain, with steep cliffs village to attend school. One major Zhang Jiawan's a 3. dropping to the valley below on all sides. ladders down th 6 falli Village residents have 4. a unique solution. They've cliffs. But these ladders are extremely dangerous. Young students are hundreds of meters to their deaths from just one slip. Some villagers have asked local officials to 8. them with a road to drive do reaso from the village. Surely this would be a more proper way for the kids to get to school, 1 argued. the officials turned down their request. They cited* a 19. 'ould be cheaper to buy a helicopter for each student than to build a road to the villag In order to 10 this situation, the residents of Zhang Jiawan will have to th *tter solution. If not, their children may be hurt or killed. esident 居民 cite 舉出