问题
单项选择题
以下关于脊索瘤的叙述中，错误的是（）
A.几乎都有骨质破坏
B.好发部位是骶尾部，其次是颅底
C.脊索瘤软组织肿块呈分叶状，50%～90%有钙化
D.脊索瘤起源于脊椎或椎旁残存的细胞
E.好发于颈、胸、腰椎
答案
参考答案：E
搜题请搜索小程序“爱下问搜题”
以下关于脊索瘤的叙述中，错误的是（）
A.几乎都有骨质破坏
B.好发部位是骶尾部，其次是颅底
C.脊索瘤软组织肿块呈分叶状，50%～90%有钙化
D.脊索瘤起源于脊椎或椎旁残存的细胞
E.好发于颈、胸、腰椎
参考答案：E
Have you ever asked yourself why children go to school? You will 36 they go to learn language, geography, history, science and all the other subjects．That is quite true．But 37 do they learn these things? People send their children to school to plan for their future work and life．Nearly 38 they study at school has some practical（实践的） use 39 their life, but is that the 40 reason they go to school? There is 41 in education than just learning facts．We go to school above all to learn how to learn 42 when we have left school we can go on learning．If a man really knows how to learn, He will always be successful, because whenever he has to do something new, he will quickly teach himself how to do it in the best way．The uneducated person on the other hand, is 43 unable to do it, or does it badly．So the purpose （目的） of school is not just 44 languages, geography, science and so on, but to teach pupils the 45 to learn．
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