心包积液和右心功能不全的临床区别哪项最有价值（）
A.肝颈静脉回流征阳性
B.颈静脉怒张
C.下肢水肿
D.舒张期奔马律
E.出现胸腹水
参考答案：D
He has not got a fever. That is to say, his temperature is _______.
A．common
B．normal
C．ordinary
D．low
某项目的净现金流量如下表所示，该项目投资回收期为( )年。 年份 0 1 2 3 4 5 6 净现金流量(万元) -100 -80 40 60 60 60 60
A．3.2
B．4.33
C．4.67
D．5
