ZPW-2000A无绝缘移频自动闭塞系统,SPT数字电缆型号“SPTYWLT23”中“SP”代表()意思。
A、数字信号电缆
B、填充型
C、数字编码
D、数字信号
参考答案:A
If you can say to a fnend, "I got my feelings hurt" , _____ "you hurt my feelings" , you are going to be
able to solve the problem much faster.[ ]
A. other than
B. rather than
C. or rather
D. or else
心血管系的超声造影检查应用,下列哪项是错误的()
A.观察左向右分流
B.测量室壁增厚率
C.观察右向左分流
D.使心内膜界限清楚
E.观察瓣膜反流