提示右心室肥大体征（）
A.心浊音界缩小
B.双下肺湿啰音
C.剑突下示心脏抬举性搏动
D.肺动脉瓣区第二心音亢进
E.颈静脉充盈
参考答案：C
All ______is needed is that you can stay with us.
A．the thing
B．that
C．what
D．which
