题目内容

小丽弄坏了妈妈的口红，妈妈为了让她不再犯这种错误，命令她对着墙壁反思。这个例子中体现的是负强化。

A. 对
B. 错

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Complete the summary of Text A by filling the blanks with one word.Text ACliff Young, an unlikely heroThe annual Australian marathon is one of the toughest races in the world, a harsh test of 1.______ for the world’s top athletes. Cliff Young, a toothless 61-year-old farmer with rubber boots, was to take part in the race. People first assumed Cliff was there to 2._ the race. When they learned of his intention, the athletes around him reacted with 3.__ and 4._. The press were curious, focused the cameras on Cliff and shouted questions at him.The marathon started and Cliff was left far behind with the strangest running style. Everyone was surprised the next morning when the news showed Cliff was still in the race. Cliff , though behind others, kept running just like gathering his sheep and trying to 5._ a storm.By the fifth night, he had overtaken all the other runners and 6. the record by finishing the 875-kilometer race in 5 days, 15 hours and 4 minutes—9 hours faster than anyone before! Cliff Young became a 7.__ national hero. He distributed his first prize to 5 other runners. Cliff came to 8._ again in 1997, at age 76, when he ran around Australia to raise money for homeless children. He kept running for the rest of his life and never kept any prize.It was not until the year 2000 when he had a mild stroke that he stopped running. To this day, Cliff Young remains a magnificent 9. and brilliant example of how ordinary individuals can 10.__ achieve remarkable results.