简述奖励旅游具有的基本特征？

A. 尸斑和坠积性淤血明显处出现的淤点或瘀斑
B. 颅内热血肿
C. 尸体解剖时颈部软组织受损伤出血
D. 腹腔内大失血死，胰腺周围出血
E. 腹腔内大失血死，肠管内柏油样变

A. comes
B. come
C. came
D. has come

A. 1%～3%
B. 3%～4%
C. 4%～5%
D. 5%～6%