問題詳情
5. 根據VSEPR(價殼層電子對互斥理論),孤對電子對與鍵結電子對間的斥力不同,所以會造成分子或離子在空間中的形狀。下列各組分子或離子中混成軌域相同,形狀卻不同?
(A)CH4和NH3
(B)NH3和BF3
(C)H2O和BCI3
(D)CO2和H2O
(E)NF3和CO2
(A)CH4和NH3
(B)NH3和BF3
(C)H2O和BCI3
(D)CO2和H2O
(E)NF3和CO2
參考答案
無參考答案
內容推薦
- 35 左圖為一 RL 串聯電路，右圖為同電路再串聯另一電感 L2之 RL 串聯電路。令其交流阻抗各為 ZT1=|ZT1|∠θ1與 ZT2=|ZT2|∠θ2且電流各為 I1=|I1|∠θI1與 I2=|
- 33 有一負載為 5 Ω 電阻與 180 μF 電容並聯而組成，求其在 120 V/60 Hz 之下的功率因數？(A)0.35 (B)0.75 (C)0.85 (D)0.95
- 34 設有四個電容，各為 C1 =C、C2 =C、C3 =C 與 C4 =C，將之串聯，則其等效之電容值為多少？(A)2C (B)4C (C)C/4 (D)C/2
- 32 一個 960 W 的負載在 120 V/60 Hz 之下量得的電流為 10 A。若提高頻率時，電流會下降。下列何者正確？(A)此負載為電容性 (B)此負載之虛功率（reactive power）
- ( )Look at the picture. The________is the cheapest of all. (A) baseball glove (B) bicycle (C) cap
- 【題組】Where is Orchid Island?(A) (B) (C) (D)
- ( )I like my new smartphone a lot because it’s much more________ than my old one. (A) delicio
- ( )The food on the dining tables________. I would like to eat a lot. (A) taste yummy (B) sound ni
- ( )Brad is the most________ player on the basketball team. (A) healthy (B) best (C) strong (D) sp
- ( )My daughter is much ________now. The pants she wore last year are already too short for her.(A
內容推薦
- A: Can’t Cody swim?B: ________ But it can catch a ball.(A) Yes, it can. (B) No, it can’t.(C) No,
- A: ________your aunts learn Chinese from you?B: No, they _________it from my brother.(A) Is; lea
- ___________ in the class __________ the magic show.(A) Many students；watches (B) Every students；
- A：Look! The dog ________ my hamburger.B：Hey! Don’t do that. In fact, dogs ________ our food.(A)
- Allison isn’t good at dancing, and Molly ＿＿＿, ＿＿＿.(A) doesn’t; either (B) isn’t; either (C) does
- A：Do you jump rope every day?B：______(A) No, I am not. (B) Yes, I can. I can jump. (C) No, I don
- Derek：Can I come in?Tim：＿＿＿(A) Yes, I can. (B) No, you can. (C) Yes, come on in! (D) No, you are
- A：＿＿＿B：The restroom is over there.(A) Where can I wash my hands? (B) What can you do for me? (C)
- Does Brian ________ every day?(A) brushes his teeth(B) do his work (C) washing his face (D) plays
- Ms. Tsai: Roy mops the floor, and Eric cleans the windows. __________________________Roy: Willia
- Dad：_____________________Son：It’s great! Music is really interesting（有趣的）. Besides, my music tea
- James：Lucy can sing many English songs. Amy：You bet. ________________________James：No wonder.(A)
- Join us and ______ a great basketball player! We want you!(A) can (B) is (C) be (D) are
- Jordan：I’m so sad. _________________ Gavin：I can’t, either.Jordan：Math is really difficult for m
- 二、克漏字選擇 12% (36~39題,每題一分; 40~43題,每題2分) A. Dear Bruce, My name is Lucy. I’m a junior high school stu
- B. Sandy, Jenny and Moira are good friends. Sandy likes movies. She a movie in the theater eve
- 三、閱讀測驗 14% (每題2分)A. There are forty students in Class This chart is about their favorite subject
- 對話與完成句子(10%,每題2分)( )A: Good evening. How may I help you? B:(A) Then we’ll take the gray CD playe
- 阿特午得機中兩物體質量分別為M1=2m、M2=m,滑輪和線均極輕,沒有摩擦。開始時Mi在離水平 面高為h的高度,而M2在水平面上,不在滑輪上的 線是豎直的。然後無初速釋放兩物體,求當第一 個物體
- 【題組】(A) sing (B) don’t sing well (C) can sing (D) am singing
- ( )A: B: Yes. She’s even taller than the tallest boy in our class.(A) Who is the tall girl over
- ( )A: OK. Your total is NT$7B: In cash.(A) How would you like to pay? (B) Would you like any
- ( )A: Sue, I will join a talent contest this Saturday. I’m so nervous.B: Don’t be. You’ll be fin
- 【題組】(A) Are (B) Is (C) Can (D) Do
- 克漏字測驗(14%,每題2分) Karen: Good morning, Sheryl. You look different today. Sheryl: Really? Do I (34) ? I