下列哪种疾病，无"肺动脉高压"表现（）
A.肺心病
B.Ebstein畸形
C.二尖瓣狭窄
D.二尖瓣关闭不全
E.进行性全腺泡性肺气肿
参考答案：B
I didn't mean ________ anything, but those apples looked so good that I couldn't resist ________ one.[ ]
A．to eat; trying
B．to eat; to try
C．eating; trying
D．eating; to try
测定鱼早期鲜度质量指标（）。
A、TVB-N
B、TMA
C、K值
D、组胺
