一个平行四边形有______条高.
根据平行四边形高的含义可知:平行四边形有无数条高;
故答案为:无数.
男,62岁,2天前突然右眼黑蒙。左侧肢体无力,约10分钟后恢复,今日又有类似发作一次,体检:未发现异常。血压18/12kPa。
最有助于诊断的检查方法()。
A.头颅CT
B.空腹血糖
C.胸部平片
D.头颅X线片
E.脑电图
I hear you’ve got a pen pal. Could you tell me ___________? [ ]
A. where does she come from
B. where will she work
C. what her name is
D. How did you know each other