問題詳情
1.對任意實數x而言, 的最小值為
(A)4
(B)
(C)16
(D)64
(E)
參考答案
答案:C
難度:計算中-1
書單:沒有書單,新增
內容推薦
- 將 6 弧度化為角度後,為下列何值?(A) (B) (C) (D) (E)
- 如圖,A、B、C為圓O上三點,且 ,若 ,則下列有關 的大小比較,何者正確? (A)∠B<∠C (B)∠B=∠C (C)∠B>∠C (D)無法比較
- 針對超高樓層(指30樓以上)的建築,通常會採用下列哪一種建築結構?(A)鋼筋混凝土 (B)鋼骨結構 (C)清水模 (D)鋼骨鋼筋混凝土 。
- 服務於都會區的有軌道大眾運輸系統,有固定班次、速度快、班次密、載運量大、準點、安全舒適的是(A)火車 (B)高速鐵路 (C)公車 (D)捷運。
- 下列何者元件可做光感測器? (A)光敏電阻 (B)發光二極體 (C)可變電阻 (D)場效電晶體。
- 竹子經過高溫炭化燒製後而成備長炭,具有很強的吸附分解能力。此過程稱為?(A)燒變 (B)淬火 (C)燒結 (D)燒硬。
- 電子商務是指利用電腦設備及網際網路從事商務活動,依照交易對象可分為B2B(企業與企業間)、B2G(企業與政府間)、B2C(企業與消費者間)、C2C(消費者與消費者間)以及P2G(人民對政府)等
- 下列機械操作時,何者最有可能產生後拋現象? (A)線鋸機 (B)圓鋸機 (C)帶鋸機 (D)鑽孔機。
- 將實際物體(如車輛、家電等)經由嵌入式感測器,透過網際網路形成訊息連結與交換的網路技術,我們稱之為? (A)物聯網 (B)無線網路 (C)區域網路 (D)雲端運算。
- 編寫自走車程式的第一步,我們通常用哪種方式來釐清任務需求與發展脈絡?(A)心智圖 (B)流程圖 (C)魚骨圖 (D)爆炸圖。
內容推薦
- A ________ sells many fresh foods, cans and drinks.(A) supermarket (B) school(C) park (D) hospita
- For ________ reasons, the road by the river is often closed in bad weather.(A) safety (B) host(C)
- The moon cake ________ delicious, and I ate three pieces in a row.(A) made (B) gave(C) tasted (D)
- Basketball is my favorite ________.(A) magazine (B) journey(C) sport (D) dessert
- Hank made a ________ that he would never be late for school again.(A) promise (B) prediction(C) r
- Teachers should teach interesting ________ in class.(A) dreams (B) fruits(C) lessons (D) weeks
- I like to ________ to music in the morning.(A) hear (B) listen(C) read (D) watch
- Please don’t be ________. Join us for the party.(A) dry (B) fry(C) sky (D) shy
- I will study tonight, but my sister ________.(A) won’t (B) will(C) isn’t (D) is
- The sick woman is too weak ________ stand up.(A) for (B) as(C) in (D) to
- ________ is important to eat healthy food.(A) It (B) That(C) This (D) What
- There ________ something in the bag over there. Can you bring it to me?(A) be (B) is(C) are (D)
- Loving and respecting your parents is more important ________ anything else.(A) as (B) in(C) tha
- Cathy demanded that Carl ______ the book he borrowed right away.(A) returned (B) returns(C) retu
- Roy is very interested ________ cooking.(A) of (B) with(C) at (D) in
- I feel ________ because I got good grades in history.(A) excited (B) exciting(C) excite (D) to e
- The boy is angry because he can’t find ________ toy.(A) her (B) its(C) his (D) their
- Eating too much ice cream is not good ________ children.(A) with (B) for(C) by (D) in
- Jack: Sam, you look upset. What happened? Sam: I was fired today.Jack: ________________________(
- Clerk: May I help you, ma’am? Barbara: ________________________(A) Yes, I need a pair of slipper
- Joyce: How are you doing?Tony: ________________________(A) I am reading a book. (B) Great!(C) I
- Ricky: Hi, Sally. How was your trip? Sally: Great. It was fun to meet different people in differ
- (On the phone)Judy: May I speak to Sue, please? Sue’s mother: ________________________(A) She i
- Brian: I like to smoke. I don’t think it is wrong. Teddy: ________________________You may pollu
- Tiffany: Hi, I am Tiffany. Irene: ________________________(A) Yes, you are. (B) Nice Try.(C) So