—John, there is_______Mr. Wilson on the phone for you.

—I’m in        bath.

A． a; the

B． the; a

C． a; 不填

D． the; 不填

i5T3.3标配机床的X轴、Z轴丝杠规格型号为3212，X轴、Z轴导轨规格型号为35。