加工中心的刀柄（）。

A．是加工中心可有可无的辅具

B．与主机的主轴孔没有对应要求

C．其锥柄和机械手抓拿部分已有相应的国际和国家表准

The coach asked his staff to       the large group of journalists waiting for him to announce his training plans.

A．adapt to

B．appeal to

C．refer to

D．attend to