属于Ⅲ度冻结性冷伤的特点有（）。
A.伤及表皮层
B.损伤达真皮层
C.损伤皮肤全层
D.愈合后不留瘢痕
E.组织有坏死，知觉消失
参考答案：C, E
On hearing the news, the girl rushed out without hesitation, ______ the luggage _____ on the floor,
and ______ in the dark. [ ]
A. left, lied, disappeared
B. leaving, lying, disappeared
C. leaving, lie, disappeared
D. left, lay, disappear
一般大型的罐等都是在（）基础上进行拉制的。
A.直筒
B.圆形
C.方形
D.圆锥体
