資訊推薦

• 41.一根帶有15A之導線，其中有80cm置於磁通密度為1Wb/m2之磁場中，若導體放置的位置與磁場夾角為30°，則導體所受電磁力為多少牛頓？(A)50(B)20(C)10(D)6
• 44.某直流分激式電動機，當電樞電流40A時，轉速為1000rpm，若負載轉矩加倍，則電樞電流應為多少安培( A )？(A)60(B)80(C)180(D)240
• 43.有一台10kW、200V直流分激式發電機，分激場電阻100Ω，當負載短路時，短路電流為30A，此時電樞之感應電勢為3V，試求於額定負載時，發電機之感應電勢約為多少V？(A)205(B)208(C
• 45.一工廠有80kW負載，功率因數0.7，若要改善功率因數到0.9，則線路損失將約為原有損失的多少倍？(A)0.3(B)0.4(C)0.5(D)0.6
• 46.一台同步機容量20kVA、220V，短路時產生額定電流所需之場電流為6.4A，且在開路時產生額定電壓所需之場電流為10A，則此電機同步阻抗標么值為多少？(A)1.56(B)0.64(C)2.4(
• 32. 圖(十四)多國文字並列的招牌類型，常見於臺灣工業區及車站附近。此種類型的招牌主要是為了便於來自下列何地的外籍人士閱讀？ (A)印度半島(B)中南半島(C)西印度群島(D)阿拉伯半島
• 3 A group of scientists recently created a system that _____ brain waves into words by focusing on t
• 2 Most _____ foods are very high in sodium. If you’re eating something out of a can or a package, ch
• 4 As we sat over our drinks, he _____ his business, and by I expressed casually my surprise at him n
• 5 Our organization doesn’t support any political party and has rigorous safeguards in place at every
• 15. ∆ ABC、 ∆ ACD、 ∆ ADE 的頂點都在同一圓上，其中各點位置如圖 ( 六 ) 所示。若 = ，且∠ CAD = ∠ DAE = 30°，∠ BAC = 29°，則 的度數為何？(
• 6 The directive aims to ensure that persons of a particular religion or belief, disability, age or s
• 7 Jenny tried to _____ her parents about where she had been that evening, but her parents could smel
• 9 Our research on the elderly has shown that those who have dementia often appear to suffer a double
• 8 Koalas are often _____ identified due to their appearance as a member of the bear family, but they
• 10 A _____ of scandals and revelations has collectively undermined the government over the past year
• 請依下文回答第 11 題至第 15 題 　　Before the invention of the at-home refrigerator in 1913, it was rare to find
• 請依下文回答第 16 題至第 20 題 　　Would you ever eat a plant whose genes were altered by scientists in a laborat
• 請依下文回答第 21 題至第 25 題 　　Post-traumatic stress disorder is a malady of memory. Sufferers are often haun
• 33. 小華上網查詢某個國家的資料，作為地理課報告的內容，表(四)是他所歸納出來的該國特徵簡介。根據內容判斷，他所要報告的國家為下列何者？ (A)巴西(B)美國(C)阿根廷(D)奈及利亞
• 【題組】12 (A) past (B) passing (C) passed (D) to pass
• 47.有一台6極，頻率60Hz三相同步發電機，定子共有36槽，其分佈因數Kd，下列敘述何者正確？(A) (B) (C) (D)
• 【題組】22 What did researchers do to form a fearful memory of a tone in mice?(A) The researchers gave m
• 【題組】13 (A) maintain (B) reserve (C) cancel (D) survive
• 【題組】25 Which of the following statements can be inferred?(A) Discoveries of optogenetics might help