____the weather, the sports meeting will be held on time.

A．In favor of

B．Regardless of

C．Apart from

D．Due to

镶嵌圆钻的质量，通常是通过下列公式（）估算的。

A.平均直径×全深×0.0061

B.平均直径平方×全深×0.0061

C.平均直径×全深×0.061

D.平均直径×全深×0.0061