乙的尸体上有被打死的蚊子，蚊子体内有甲的血样。Introduce:Of a summer in the evening, on the dike that is far from a village, jia Yi two fishermans enjoy the cool at the same time at the same time prattle. Because weather is sultry,can be, mosquito is very much, bite popular irritated meaning is random. Before long, two National People's Congress made a noise to rise. Under stretch, armour takes the stone on the ground to break second dead. Subsequently, armour covers the body of second with grass, and erasure dactylogram and footmark, left quickly next, see without the 3rd person during this. The following day, the body of second was discovered, the police arrives spot reconnaissance. Next, the police found armour, according to his hematic sample, the police is very fast crack a criminal case. Is this why? Answer of connotation ghost story: There is the mosquito that is beaten dead on the body of second, there is the hematic kind of armour inside mosquito body.