区别癌与肉瘤的主要依据是

A．浸润性生长、无包膜

B．通过血道转移

C．异型性明显，有核分裂象

D．肿瘤体积巨大

E．组织来源

Almost every weekend Joe had to ____ his girl-friend ____ the supermarket to buy clothes though he didn't

want to.