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• 5利用帶入消去法求此二元一次方程式 的解？(A) x＝y＝2 (B) x＝y＝1 (C) x＝-y＝-1 (D) x＝-y＝-2
• ( )如圖，△ABC中，以B為圓心， 長為半徑畫弧，分別交 於D、E兩點，並連接 。若∠A＝30°， ，則∠BDE的度數為何？(A)(B) (C) (D) 75
• 如圖(五)，ABCDE 為正五邊形，CDFG 為正方形，則∠ADF＝________度
• 4二元一次方程式4x－3y＝20，當x=6時，y=？(A)2 (B) (C) (D) -2
• 下列選項中，哪一個一定是線對稱圖形？(A)銳角三角形 (B)直角三角形(C)鈍角三角形 (D)等腰直角三角形
• 關於二次函數y＝－2(x－1)2＋2圖形的敘述，下列何者錯 誤？(A) 其圖形的對稱軸為x＝－1 (B) 其圖形的頂點坐標為(1 , 2)(C) 其圖形的開口向下 (D) 其圖形為一拋物線
• （ ）在△ABC與△DEF中，若 ，再加上下列哪一個條件後，可使△ABC △DEF？(A)∠A=∠D (B) ∠B= ∠D (C) ∠C=∠F(D) ∠B=∠E
• 3化簡二元一次式(x＋2y－5)－(3x－y＋7)＝？(A)－2x＋3y－12 (B) －2x＋y＋2 (C) －2x＋3y＋2 (D) 2x＋3y－12
• ( )兩直角三角形在下列何種情況下不一定全等？(A)兩股對應相等 (B) 兩銳角對應相等 (C) 一銳角及斜邊對應相等 (D) 一股及斜邊對應相等
• 下列何者為二元一次方程式？(A)3x－2y (B) 2x－3y＝5 (C) x＋5＝0 (D) 5x＋3y＋8

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