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
