最常用的数码管显示器是七段式显示器件。
参考答案:对
女,5岁,无头痛、头晕及浮肿,查体:血压120/95mmHg,尿常规未见异常。最可能的诊断
A.肾性高血压B.继发性高血压C.原发性高血压D.家族性高血压E.多发性大动脉炎
__________ many times, he finally understood it.
A.Being told
B.Telling
C.Having been told
D.Having told