挛缩分类包括（）
A.血管源性挛缩
B.软组织性挛缩
C.神经性挛缩
D.外伤性挛缩
E.骨骼性挛缩
参考答案：B
She is very dear to us. We have been prepared to do_______it takes to save her life.
A．whichever
B．however
C．whatever
D．whoever
我国现行的物流体系对电子商务的发展的制约因素
