31. 船舶壓載時水尺產生變化,當船艉部吃水大於船艏吃水則船舶吃水處於甚麼情形?(A) 艏俯 (trim by bow)(B) 艉俯 (trim by stem)(C) 縱平浮 (even keel)(D) 左右旋轉(Rolling)