恶性嗜铬细胞瘤的诊断指标应除外()
A.瘤组织侵犯周围组织及血管
B.瘤细胞核分裂象增多,并见病理核分裂象
C.免疫组化染色CgA阳性
D.术后复发
E.淋巴结转移
参考答案:C
They _______ drinking although they are drivers, which is very dangerous both to them and the passengers.
A.give up
B.devote themselves to
C.quit
D.abandon themselves to
印刷压力偏小会造成()。
A、印品墨色浅淡,图文残缺不全
B、网点严重扩大,甚至糊版
C、印品上则会出现墨杠
D、加剧印版的磨损