下图是近代著名漫画家特伟的《偷天换日》，该漫画反映的背景事件对中国产生的主要影响是

A．促进国共两党第二次合作的实现

B．大大加深了中国的民族危机

C．加速了反法西斯战争的胜利进程

D．直接促使了中国的战略反攻

How do you determine the weight of the vessel that is supported by the ground when a vessel has run aground?（）

A.This requires extensive calculation and is usually performed only by a naval architect not by a ship's officer

B.Determine the point where aground and the draft at that point，then calculate it using the grounding formula

C.Use the hydrostatic tables and enter with the mean draft before grounding and the mean draft after grounding

D.Use the inclining experiment formula and substitute the change of trim for the angle of list