尿毒症引起鼻出血的原因是()
A.凝血障碍
B.小血管损伤
C.破坏造血系统
D.内源性凝血酶原减少
E.血小板异常
参考答案:B
When the person that the caller wants to speak to is out,you may ask the caller to call again later.( )
诗人林逋在描写梅花时写道:“疏影横斜水清浅,暗香浮动月黄昏”,梅树在地上的影子是光的______现象,诗人嗅到梅花的暗香是______的结果.