材料在受力过程中从开始加载至断裂时止，所能达到的最大应力值称为（）

A、屈服极限

B、剪切极限

C、强度极限

D、韧性

I'm not ____ my best tonight. I'd better not have anything for supper. Perhaps you'd_____me some tea.

A．trying;give

B．doing;offer

C．making;bring

D．feeling; make