请教一道听力，谢谢！

PP1有一题听力

A：I tried half an hour to print my paper on the laser printer, but it keeps jamming, do you have any suggestion?

B:It's certainly news to me. So you can't completely reliable for me.

what does the man imply?

A: He is surpriesed that the printer is not working properly.

B: He is not familiar with laser printer.

我选了B, 但答案是A。

有大家帮帮我， 应该怎么样理解？

可能和语调有关系...第二个人说，这对我来说可是大新闻啊，SO你可能不能完全依赖我...

说明此人如果在正常情况下对打印机是很熟悉的，时可以完全依赖他而解决问题的，而第一个人遇到的是非正常情况，让他有些闻所未闻，吃惊...选A的话想想如果他对打印机不熟，第一个人怎么会向他求助呢...

这题蛮绕的...AB确实不容易区分！~

那是正确答案阿?

还是pp上的答案,pp本身上有些答案错

但偶不知道这题有没有错