下列有关裁定和判决区别的表述，正确的有( )。

A．一审判决可以上诉，而裁定一律不准上诉

B．判决是解决案件的实体问题，而裁定是解决诉讼中的程序问题

C．判决可以采用书面形式，也可以采用口头形式，而裁定只能采用书面形式

D．判决发生于诉讼的各阶段，而裁定在案件审理终结时作出

Those who failed to get into the art exhibition ________ disappointed as many of the artists who should have appeared did not come.

A．didn’t need feel

B．needn’t have felt

C．mustn’t have felt

D．couldn’t have felt