阳极板组合成的阳极板平面度公差为5㎐，其对角线误差不大于（）。
A.6㎐
B.8㎐
C.10㎐
D.12㎐
参考答案：C
The house ________ I grew up has been taken down and replaced by an office building.
A．that
B．in that
C．which
D．in which
关于“髓母细胞瘤”，下列要点哪项不对()
A．男孩多见
B．多位于小脑
C．圆形或卵圆形
D．常为环形强化
E．瘤周水肿轻
