能反映左心室功能的检查方法有()
A.超声心动图
B.动态心电图
C.心向量图
D.动态血压
E.冠状动脉造影
参考答案:A
To my ___, the short story has a lot of _____.
A.surprise; character
B.surprised; characters
C.surprised; character
D.surprise; characters
以下哪一个是点阵打印机
A.激光打印机
B.喷墨打印机
C.静电打印机
D.针式打印机