冠状动脉粥样硬化次要危险因素错误的是（）
A.遗传因素
B.工作紧迫感
C.糖尿病
D.肥胖
E.西方的饮食方式
参考答案：C
______ you may have , you should gather your courage to face the challenge .
A．However serious a problem
B．Whatever serious a problem
C．However a serious problem
D．No matter how a serious problem
早期即可发生淋巴转移最常见的肺癌是( )
A．鳞腺癌B．腺癌C．鳞癌D．小细胞癌E．大细胞癌
