手术效果很好的脊髓内肿瘤为()。
A.星形细胞瘤
B.转移癌
C.室管膜瘤
D.胶质母细胞瘤
E.间变星形细胞瘤
参考答案:C
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The fact ___ she was often late for school made her teacher angry.
A.which
B.that
C.if
D.whether