稳定型心绞痛伴发缺血性心肌病X线检查可见（）。
A.心影增大、肺充血
B.主动脉弓突出
C.肺瘀血
D.肺动脉干扩张
E.上腔静脉扩大
参考答案：A
-I'm sorry. I ________ at you the other day.
-Forget it.I was a bit out of control myself.[ ]
A．shouldn't shout
B．shouldn't have shouted
C．mustn't shout
D．mustn't have shouted
何谓物理脱色？何谓化学脱色？
