— I don't care for baseball.

— How can you say you don't like something _____ you've never even tried it! [ ]

A. till

B. after

C. unless

D. when

为了杀人而购买枪支的，应：( )。

A．以故意杀人罪定罪处罚

B．以非法买卖枪支罪定罪处罚

C．以故意杀人罪和非法买卖枪支罪数罪并罚

D．以故意杀人罪和非法买卖枪支罪从一重罪处罚