A為何不是氫鍵呀？ 它不是接在有F N O的共價鍵上嗎？

) 3. 下列物質中,哪些具有分子間氫鍵? = (A) H3C-C-OCH3(B) CH3OH (C) KOH O

急問🙇🏻‍♀️這三題

XLEARBE 4/BCDE ∴ABCE≅ △CBD AA 故∠ECB=∠DBC(對應請看鸲。" *3. 如圖,△ABC中,∠ABC=90°,AB=4,BC = 3, 今以AC為邊長向外作正方形ACDE,連接BD、BE, 則BD=158,BE=N65 4.如圖,△ADE、△ABC均為正三角形。 (A)說明∠BAD=∠CAE。 (1)/(2)說明△ADB△AEC。 (3)若∠AEC=100°,求∠BDE的度數口DAEC中 4 OVA D B BO RECISAS) Nt.c (SAS) 3° E E

請問甲畫的圖是什麼意思

(B)∠ABP=<CBP=1 (C)DP=PE 2<ABC (D) △BDP≅ BEPASA全等生 (2)4. 下列各作圖方式,何者無法平分 甲 乙 B. (A)甲 D C B (B) Z 丙 OF - ) 5. 如右圖,△ABC中,ZB=50 以逆時針方向沿著△ABC的二 多少度?

請問這兩題該怎麼算？>°°<

1 D 4.空間中有兩條歪斜線L與S,直線L上有三點A、B、C,且AB=BC。直線S上有三點D、E、F,其中AD、BE、CF 皆垂直L。已知AD=10、BE=13、CF=24,則歪斜線L與S的距離為 。(化為最簡分數) 5.令E:x+z=2為坐標空間中過三點A(2,1,0)、B(0,1,2)、C(-2,1,4)的平面。另有一點P在平面z = 1上且其 於E之投影點與A、B、C三點等距離。則點P與平面E的距離為 。(化為最簡根式)

想請問一下這一題 為什麼不能選D

CR (A) are being 7. A typhoon destroyed the A) were wait (C) are to be 4) is being idge to the village; all the residents could (B) were waiting (C) was wait do) (D) was waiting thing that she does every day for help. the house tidy

求解🙏 謝謝

九 九6 R abroad. 最終完成 (A) so (B) until (C) although 11. It's difficult to work with Hank. He can forget things I (B) am telling (A) have told (C) will tell (D) because him more than 10 times. (D) was told

求解謝謝 3-4全等三角形應用

10. 如右圖,△ABC與△CDE均為正三角形。今連接AE與 BD, 若△BCD 的面積為2√ 3,AC=4,則△ABE的 面積為 C E 11. 如右圖,坐標平面上有4(8,0)、B(06)兩點,CD 為AB的中垂線且交x軸於C點,則C點的坐標為何? 【解 C84(8,0), B-6) 10 2. 如右圖,△ABC中,∠C=90°, AC=12, BC =9, AD平分∠BAC,則CD = ? AB=15 S B D 2 C

想請問(C)選項的動作為什麼不是has to ①get up ②take a bus，而是 ①has to get up ② takes a bus？ (① ② 表示第一個動作 第二個動作) 謝謝🙂

8. Which sentence is right? was (A) He studied and works in America, but he has been born in Taiwan. (B) He didn't feel like go to school, so he lied to his mother and played computer games at [home all day. going (C) John works in Taipei but his wife lives in Hsinchu. Living with his wife in Hsinchu, John has to get up at five and take a bus to work for two hours every day. Hsinchu 新 () Tell me who didn't turn off the lights and close the door in the classroom before going to the gym.

想問為什麼不能A

D T2. healthier, Alice decides to follow the doctor's words-get up early, exercise more, and lose a few pounds. (A) Become og bus (B) Becomes a (C) Becoming A(A) Becomes (D) To become corcere 2 Je aura of

求解 d2區間的利潤高低該如何判斷

利潤 N 丙 市場 d1 BE ME 田 d2 d3 距離