血清肌肝测定常用试剂
A．苦味酸B．脲酶C．谷氨酸脱氢酶D．4-氨基安替比林和酚E．重氮试剂
参考答案：A
The pen my father sent me as my birthday gift very well.
A．is written
B．writes
C．writing
D．has written
阻塞性肺气肿的病理改变有（）
A.肺过度膨胀、弹性减退
B.外观灰白或苍白，表面可见大泡
C.肺泡壁变薄，肺泡腔变大
D.蜂窝肺
E.弹力纤维破坏
