肺暴震伤常见病因( )
A.暴力挤压B.刀砍伤C.冲撞D.高压水浪冲击E.钝器碰击
参考答案:D
其他合成纤维长丝弹性单纱
English is very ________and all the students know the________ of the English
study. [ ]
A. important; importance
B. important; important
C. important; importance
D. importance; important