在脑膜瘤的肿瘤包膜构成中,哪项应除外:()
A.肿瘤周围的小血管
B.肿瘤周围的水肿
C.肿瘤周围的薄层脑脊液
D.肿瘤周围的神经胶质
E.肿瘤周围的皮层
参考答案:B
—Who is suitable for the new chairperson of the Students’ Union?
—David is. He is ______ enough to come up with new ideas.
A.imaginative
B.humorous
C.modest
D.outgoing
关于心肌灌注运动负荷显像,其灵敏度可达到()。
A.20%~40%
B.40%~60%
C.60%~80%
D.85%~90%
E.90%~98%