男,16岁,头痛数月,MRI平扫及增强扫描如图,最可能的诊断是()
A.生殖细胞瘤
B.松果体细胞瘤
C.星形细胞瘤
D.室管膜瘤
E.未见异常
参考答案:B
At last, they reached _______ there was no grass and trees.
A.to the place where
B.where
C.the place which
D.in which
中国现存最古老的石拱桥是隋朝在河北赵州城南浓水上所建,原名安济桥,它是由工匠( )所建
A.李冰
B.李春
C.鲁班
D.张衡