枪弹创射入口形态特征包括（）
参考答案：创口中心部位组织缺损、挫伤轮、擦拭轮、射击残留物、烟晕、枪口印痕、火药斑纹
第一次将反封建旧道德的内容与新文学的形式巧妙地结合在一起的作品是
A B C D
After he was knocked down by a bike, he was badly hurt and had to ______ to his feet.
A．stand
B．struggle
C．run
D．sit
