一个新生儿在脊柱基部有一个囊性膨大,此处皮肤颜色较深,长有粗毛,最有可能是()
A.蒙古斑
B.隐性脊柱裂
C.鲜红斑痣
D.脑(脊)膜膨出
E.脑膨出
参考答案:D
Ideally in the heart of the city, the hotel is a favourite with many guests.
A.locating
B.being located
C.having been located
D.located
在仪器示波屏上显示与缺陷无关信号来源有()。
A、轮廓的反射
B、侧面效应
C、表面状态
D、无穷多