問題詳情

1. 如附圖，若兩圓外切於 P 點，且半徑各為 4 cm、16 cm，外公切線 

 交內公切線 

 於 Q 點，A、B 為切點，求：


【題組】(1) 外公切線 

 長 (3 分)

參考答案

答案：D
難度：適中0.615385
統計：A(52),B(12),C(41),D(240),E(0) #
個人：尚未作答書單：Vocabulary:dead

用户評論

【Shireen Hou】評論

E. coli 【生】( Escherichia coli ) 大腸桿菌dead  a.死掉的When she found that her only son was dead, she burst into crying die/died/died  verb  stop living.  Many people died from the war.很多人在這場戰爭中喪生.dying  a.垂死的 The woman is dying, she needs to write her will. deadly:  致命的; 致死的The disease is deadly. 

【黃婉如】評論

superbacteria簡明英漢詞典DJ: []超級細菌trembleKK [ˋtrɛmb!] DJ [ˋtrembl]1. 發抖; 震顫[(+with)]