采用大额支付系统处理查询查复应遵循的原则有()
A、有疑必查、有查必复
B、有疑必查、查复相等
C、查必及时、复必详尽
D、复必详尽、切时处理
参考答案:A, D
The Turners consider ____ a computer, which is commonly considered _________ a great help in our work and study.
A.to buy; to be
B.buying; to be
C.to buy; being
D.buying; being
应用振动频率在_____以上,正常人耳听不到的机械振动波作用于人体治疗疾病的方法称为超声波疗法。