5.一單向版配置 D10 鋼筋，版厚 15cm，有效深度 12cm，此版在受力方向某斷面所承受之設計彎矩 Mu 為 0.7 t-m/m，試求此版在該斷面處之最少鋼筋量。

(2) Any alteration of course and/or speed to avoid collision shall, if the circumstances of the case admit, be large enough to be readily apparent to another vessel observing visually or by radar. A succession of small alterations of course and/or speed should be avoided.