根据句意及母提示填入适当的单词。

1. The foreign athlete's p_____ is so good that I can't believe he is from South Korea.

2. Sorry, I can't follow you. Can you speak more s_____?

3. Please be more careful, or you'll make more m_____.

4. Though Jet left his friends two years ago, he couldn't forget the f_____ between them.

5. As a s_____, Xu Sanduo knows he must try his best to do everything well. So he succeeded at last.

6. I r_____ I had to work harder to get good results.

7. Don't be a_____ of making mistakes, because everyone makes mistakes.

8. How will you d_____ with these old clothes?

9. It's not easy to s_____ such a difficult problem.

10. We should try our b_____ to learn English well.

下列关于采取差异化战略的风险的表述中，错误的是（）。

A．竞争者可能模仿，使得差异消失

B．保持产品的差异化往往以高成本为代价

C．目标市场由于技术创新、替代品出现等原因导致需求下降

D．企业要想取得产品差异，有时要放弃获得较高市场占有率的目标