对肿瘤性腰背痛，描述不正确的是（）
A.持续性腰背痛
B.原发性肿瘤多于继发
C.疾病发展迅速
D.药物缓解不明显
E.常有放射性神经根痛
参考答案：B
—Artistic people can be very difficult sometimes．
—Well, you married one． ．
A．You name it
B．I’ve got it
C．I can’t agree more
D．You should know
Tom is busy _______his apples. [ ]
A. to cut
B. cuts
C. cuting
D. cutting
