有助于诊断结节性硬化的CT表现（）
A.脑室扩大伴钙化
B.脑表浅部钙化
C.豆状核钙化
D.脑底钙化
E.室管膜下结节样钙化
参考答案：E
Since 1994, the glacier in Antarctica has lowered by as much as 90cm, _____ sea level to rise. [ ]
A. having caused
B. causing
C. caused
D. being caused
在FrontPage2000中，当建立的网页很长时，为方便用户浏览，往往在网页中插入书签来定位，书签的类型有（）。
A.文本型书签
B.图片型书签
C.电子邮件型书签
D.空白型书签
