关于招标代理机构的资格管理，下列说法中正确的有( )。A．中央投资项目招标代理机构

女性，28岁，风湿性瓣膜病病史2年。3周前因感冒出现呼吸困难，咳嗽，不能平卧。查体：半卧位，颈静脉充盈，双肺底湿性啰音。心率127次/分，心房颤动，可闻及开瓣音，心尖区舒张期杂音，肝肋下0.5cm，下肢轻度水肿。

以下哪项结果与病情不符合（）

A.X线示心影呈"靴型心"

B.心电图示右室肥大

C.心电图示左房肥大

D.X线示心影呈"梨型心"

E.超声心动图示后叶前向移动和瓣叶增厚

下列短文的划线部分是错误的。

Confucius was born in the state of Lu in the year of 551 B.C. When he is 3 years old, his father died. And when he was 17, his mother died. And Confucius received a good education when he was young. In his thirty, Confucius began to teach. He spent the rest of his life teaching. In the age of 55, Confucius begins to travel around China. He tried to search for good rule of behavior. When Confucius was 68 years old, he returned back to Lu, his home state. He wrote lots of books after he came back. Five years after, he passed away. Although he has been died for several thousand years, we can still remember he forever.

我国最早的救火工具是出现的朝代是（）

A．宋代

B．清代

C．元朝

D．唐代

下列哪项不是我国的安全生产方针（）

A.以人为本

B.安全第一

C.预防为主

D.综合治理

“MA”代表的含义是（）。

A.防爆合格证标志

B.入井证标志

C.煤矿矿用产品安全标志

D.产品合格证