Don’t defend him any more. It’s obvious that he _____destroyed the fence of the garden even without an apology

A．accidentally

B．carelessly

C．deliberately

D．automatically

计量器具的检定就是（）。

A．使用前要检验是否符合要求

B．计量器具定期自检的规定

C．定期将计量器具送到计量检定部门检验