— I was so sure that our experiment was going to succeed, but something went wrong at the last moment.

— ______, but don't give it up. [ ]

A. You don't mean that                

B. Find out the reason

C. Never mind                      

D. I'm sorry to hear that.

下列各项中，对收入分配的调节会产生不利影响的有（）。

A、个人所得税

B、对所有消费品征收消费税

C、财产税

D、遗产税