心包积液
A.心尖部可触及舒张期震颤B.心尖搏动减弱或消失C.心尖搏动向左下移位呈抬举性D.胸骨右缘第二肋间收缩期震颤E.胸骨左缘第二肋间收缩期震颤
参考答案:B
However, the eruption itself is really exciting and I shall never forget my first sight of one.
A.to watch
B.to be watched
C.watched
D.watching
几种特殊情况下降水量的处理?