—I'm sorry to tell you the ballet Nut Cracker has been cancelled.

—Oh, no! ________.

A．It's a pity

B．I don't care

C．It's a deal

D．It's not my cup of tea

锅炉爆管的处理正确的是（）。

A、开启过热器、蒸汽管道和分汽缺睥疏水阀

B、如因锅炉缺水，管壁过热而爆管时，应及时向锅炉给水，以维持水位正常.

C、炉管破裂不能保持水位时，应紧急停炉

D、应紧急停炉，并严禁向锅炉给水