慢性硬脑膜下血肿的CT表现特征是()
A.新月形高密度灶
B.梭形高密度灶
C.新月形稍低密度灶
D.脑内高密度灶
E.骨板下圆形高密度灶
参考答案:C
_____ to be a press conference at the town hall tonight. _____ to be broadcast live.[ ]
A. There's; It's
B. It's; There's
C. There's; There's
D. It's; It's
直方图的分布形状及分布区宽窄是由质量特性()的平均值和标准偏差所决定的。
A.统计理论
B.统计方式
C.统计数据
D.统计系数