— We didn't see you at this morning's meeting.   

— ______, but if I hadn't had to meet a friend, I would have been there. [ ]

A. I'm sorry      

B. Me, too        

C. Never mind    

D. Thank you

2组PCV阀BTG盘指示灯是由安装在电磁阀上的（）控制的。开关有（）对接点。