— Our holiday cost a lot of money.

— Did it? Well, that doesn’t matter________you enjoyed yourselves.

A．as long as

B．unless

C．as soon as

D．though

环境污染的来源有三大方面

A．工业性污染、农业性污染、生活性污染

B．生产性污染、生活性污染、交通性污染

C．工业性污染、生活性污染、交通性污染

D．生产性污染、生活性污染、实验性污染

E．工业性污染、农业性污染、实验性污染