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• 18. 於一平面座標上，已知 y=f (x)=-2x2+bx+c 圖形的對稱軸為x=k。若݂f(0)=0，且 f(1), f(-1), f(3)為等差數列，則݇k=___________。
• 6.如圖,有一扇形的半徑為4,圓心角為135°,設求扇形弧長=aπ九和面積=bπ,則a+b=?(A)9(B)8(C)7(D) 16
• 19. 如下圖為棋盤式的街道。若大雄從家中開車出發，取捷徑到學校，途中必須經過 A, B 兩點。但 B 點路口的交通壅塞，規定車輛只能直行，禁止轉彎，則 大雄從家中到學校可以有____________
• 2. Most governments subsidize basic education because(A) there are external costs associated with we
• 3. If a bank has $10 million of checkable deposits, a required reserve ratio of 20 percent, and it h
• 4. If the purchasing-power parity theory is true, then:(A) the net exports schedule is very steep.(B
• 5. Suppose that when the price of good X falls from $10 to $8, the quantity demanded of good Y rises
• 6. Analysis of the short-run Phillips curve suggests that policymakers who want to reduce unemployme
• 7. In the Solow growth model, if investment exceeds depreciation, the capital stock will ______ ando
• 8. When profit-maximizing firms in competitive markets are earning profits,(A) market demand must ex
• 9. If a tax is imposed on a market with inelastic supply and elastic demand, then(A) buyers will bea
• 10. An example of increasing returns to scale is when capital and labor inputs:(A) both increase 10
• 11. In the case of unions, the conflict of interest between different groups of workers results in i
• 12. Financial markets have the basic function of(A) getting people with funds to lend together with
• 13. Under which of the following conditions would the interdiction of illegal drugs result in a decr
• 14. In Keynes's liquidity preference framework, as the expected return on bonds increases (hold
• 15. Two firms are considering going out of business and selling their assets. Each considers what ha
• 18.考慮平面場函數F(x,y)=(y2+5)i+(2xy-8)j,i與j分別為x軸與y軸的單位向量。令C1為從原點沿x軸走到(x,y)=(1,0)之路徑。C2為從原點沿x=y直線走到(x,y)=(1
• 19.考慮18题中的平面場函數F(x,y)。(A)F沿任意封閉路徑之路徑積分值為0。(B)F只有沿以原點為圆心之圆形路徑的路徑積分值才會為0(C)F沿任意封閉路徑之路徑積分值皆不為0。
• 19.考慮18题中的平面場函數F(x,y)。(A)F沿任意封閉路徑之路徑積分值為0。(B)F只有沿以原點為圆心之圆形路徑的路徑積分值才會為0(C)F沿任意封閉路徑之路徑積分值皆不為0。【題組】20.考
• 15.某離子化合物X之溶解度與溫度關係如圖7。林生利用圖8裝置測試體積為100cm3金屬塊的浮力，且可忽略溫度對其影響。在45℃已達溶解平衡的X水溶液中，尚有未溶解的X固體。將金屬塊完全沒入該溶液中，
• 12.1945年8月6日美軍在廣島投下原子彈後，「廣島 縣 產 業 獎 勵 館 」 是 少 數 沒 有完全傾倒 的建築 物。戰後，日 本政府 將該 建築（ 原 爆 圓 頂 館，照 片 1）。更 名 為
• 16. In the Solow model with technological change, the Golden Rule level of capital is the steady sta
• 17. Which of the following statements is correct? Monopolies are socially inefficient because they (
• 18. According to the Mundell-Fleming model for a small open economy with flexible exchange rates, an