資訊推薦

• 15. 在坐標平面上有一半徑為 的圓O和一直線L，O點的坐標為(－3，4)，若L的直線方程式為y＋1＝0，則下列敘述何者正確？(A)直線L為圓O的切線 (B)直線L為圓O的割線(C)直線L與圓O沒有交
• 16. 如圖，若 均為一圓的兩弦，則下列敘述何者正確？ (A)連接兩弦的端點所形成的四邊形為長方形(B)連接 (C)∠ADB＋∠ACB＝180°(D)若 與 的交點為E，則∠AEC＝
• 17. 如圖，圓A與圓B分別通過對方的圓心，且相交於P、Q兩點，下列哪一個敘述是錯誤？ (A)四邊形AQBP為菱形 (B) (C) (D) ＝2：1
• 18. 設兩圓半徑分別為r1、r2，且r1＞r2，若兩圓外切時的連心線段長與兩圓內切時的連心線段長比為2：1，則r1:r2＝？(A)2：1　(B)3：1　(C)4：1　(D)3：2
• 19. 如圖，已知O點為圓心，若∠AOB＝100°，∠B＝35°，則 ＝？ (A)100°(B)90°(C)80°(D)70°
• 20. 如圖，圓O1與圓O2相交於B、C兩點，A為圓O1上一點，分別交圓O2於D、E，若 ＝50°， ＝60°，則∠DO2E＝？ (A)55°　(B)100°　(C)110°　(D)120°
• 21. 如圖，直線PA與PB分別切圓O於A、B兩點，若∠P＝44°，則∠ACB＝？ (A)68°　(B)72°　(C)76°　(D)80°
• 22. 如圖，直線L、直線M、直線S均為圓O的切線，A、B、C皆為其切點，若∠1＝100°，且 為直徑，則下列何者錯誤？ (A)∠AOC＝80°　(B)∠BOC＝100°　(C)∠2＝100°　(D)
• 23. 如圖，圓O中的弦 交直徑 於P點，若 ，則圓O的半徑為何？ (A)14(B)19(C)24(D)36
• 1.Lisa: What is this? Sammy:______ 　　　　(A)　They are markers.　(B)　These are pencils.　(C) It’s a comic
• 11.You mustn’t take a(n) _______ when there’s a fire or an earthquake. Instead, you should take the
• 1. She ___ take the MRT to work. Now she rides abicycle in order to exercise more.(A) use to (B) use
• 1. A: What’s the _______ today? B: It’s _______ March 6.(A) date ； on (B) date ； x (C) day ； x (D) d
• 11. Anna: What is Tom doing? Bill: He is ________ the bells ___ the Christmas tree.(A) jumping； on (
• 2.Now that the busy week has _______, it's time to relax and have fun.(A) appointed (B) contras
• 3.Your social _______ somewhat decides how people treat you.(A) difference (B) appointment (C) disre
• 4.Durian is one popular fruit in Southeast Asia, _______ in Malaysia.(A) uncommonly (B) respectively
• 5.The sea air smells _______.(A) deep-fried (B) abundant (C) salty (D) crispy
• 6.The news story _______ the loyal dog captured the heart of everyone.(A) past (B) regarding (C) ins
• 7.Most people are against the new _______ policy.(A) agricultural (B) abundant (C) crispy (D) salty
• 8.Being _______ is a way to show your respect to others.(A) punctual (B) rude (C) informal (D) unacc
• 9.To lose some weight, I don't take the bus, but walk home ________.(A) instead (B) appropriate
• 10.It's ________ to pick your nose in public.(A) prestigious (B) rude (C) complicated (D) respe
• 11.Bob put on ten pounds in two weeks because he ate too many _______ food.(A) nearby (B) deep-fried
• 12.Janice walked straight __________ me without saying "hi."(A) instead (B) ending (C) pas