神经鞘瘤()
A.肿瘤有出血、囊变、坏死
B.瘤体与脊髓分界清楚
C.瘤体与硬脊膜粘连紧密
D.肿瘤位于髓内边界清楚,可有囊变
E.为常见髓内肿瘤
参考答案:B
Zhang Guorong’s singing career _________ about over 20 years. It was his ________
appearance at singing in public.
A.last ;last
B.lasted for; last
C.lasted; lasted
D.lasted for; lasted
溃疡性结肠炎活动期的标志是 ()
A.便隐血试验阳性
B.C-反应蛋白水平升高
C.pANCA阳性
D.血清白蛋白下降
E.白细胞计数增高