(一)過境貨物艙單

一、燃煤飛灰、水淬爐石粉等卜作嵐材料已普遍添加於臺灣的預拌混凝土之中，可使混凝土晚期強度能有所提升。請說明卜作嵐材料可提升混凝土晚期強度的原因及添加該材料對混凝土白華現象之影響。（15 分）

(一)請根據上述數據，利用莫爾庫倫破壞準則，計算此砂土的摩擦角與凝聚力。（10 分）

(二)若該砂土地層在現場承受的有效應力為 250 kPa，試估其最大有效剪力強度，繪製莫爾圓並標註摩擦角、凝聚力以及承受之有效應力值。 （10 分）

三、繪製由初始狀態（Vi）抵達縮性限度狀態（Vf）之土壤材料體積與含水量之間的關係；並在正確位置標註：座標與單位、塑性限度（PL）、 液性限度（LL） 、縮性限度（SL）等之相對位置。（15 分）

(二)推廣貿易服務費

(三)從量稅

(四)先估後驗

 (一) To combat the transshipment of Mainland China exports through Taiwan under false "Made in Taiwan" labels to evade additional U.S. tariffs, the Customs Administration has enforced a three-level defense system: pre- clearance verification of origin documents, rigorous inspection of origin labeling during transit, and strict post-violation penalties. Continuous improvements to enforcement measures are underway to strengthen border security and uphold trade integrity.

(二) Since Russia's invasion of Ukraine, major countries have tightened sanctions and export controls against Russia. The Ministry of Economic Affairs has repeatedly announced a list of high-tech goods subject to export controls, aligning the scope of controls with that of the European Union. To help our machinery manufacturers diversify their export markets, the Export-Import Bank of ROC provides machinery export loans, offers funding and interest rate discounts, and subsidizes manufacturers' participation in overseas exhibitions.

一、單筋矩形斷面之懸臂梁，矩形斷面梁寬b=35cm，有效深度d48cm，梁淨跨度L=3.5m。梁承受均佈靜載重（包含自重）=1.25tfm、活載重=2.35tfm，鋼筋降伏強度fy=4200kgfcm2，混凝土抗壓強度=350kgf/cm2。懸臂梁固定端斷面採用單層排列5根D22拉力鋼筋，D22單根鋼筋面積為3.87cm2，在此斷面混凝土壓應變=0.003的極限狀態下，已知拉力鋼筋應力降伏。求固定端斷面的彎矩計算強度Mn及強度折減係數ϕ，並檢核是否符合規範的安全需求。（25分）