【正确答案】The development of world history tells us that the road of human civilization has never been a smooth one, and that mankind has made progress by surmounting difficulties. No difficulty, however daunting, can stop mankind from advancing. In the face of difficulty, we should not complain about ourselves, blame others, lose confidence and run away from responsibilities. We should join hands and rise to the challenge. History is created by the brave.

【答案解析】无