以下哪征象有助于鉴别髓母细胞瘤和室管膜瘤()
A.密度稍高
B.均一增强
C.脑积水程度
D.沿脑脊液播散种植转移
E.第四脑室形态
参考答案:E
It shames me to say it, but I told a lie when ___ at the meeting by my boss.
A.questioning
B.having questioned
C.questioned
D.to be questioned
道德最显著的特征是()
A.继承性
B.实践性
C.自律性
D.他律性
E.客观性