出境集装箱报检应提供买卖双方签订的合同、信用证、装箱积载单、装箱明细单( )
参考答案：对
_______ good suggestion! I haven't heard of __________wonderful advice for a long time.
A．What a; such a
B．How; such a
C．What a; such
D．How; such
引起左心室后负荷增加的主要因素是（）
A．体循环高压
B．肺循环高压
C．二尖瓣关闭不全
D．血容量增加
E．左向右分流的先心病
