按要求完成下列各题。

1. Sarah is 160 cm. (就画线部分提问)

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2. Wu Yifan is taller than John. (就画线部分提问)

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3. I like the yellow monkey. (变为一般疑问句)

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4. I think the yellow monkey is 150 cm tall. (变为否定句)

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5. Is his head smaller? (作肯定回答)

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6. His brother is 50 kg. (就画线部分提问)

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7. I am 160 cm. She is 158 cm. (变成一句话)

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8. He can catch the ball. (变为一般疑问句)

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按《国家电网公司输变电优质工程评定办法》规定，国家电网公司优质工程申报时，要求工程项目建设和运行考核期内（正式投入运行一年），不得发生四级及以上工程质量事件，以及什么质量事件？