问题
实验题
如图所示为“探究杠杆平衡的条件”的实验装置。实验前应先向____端调节杠杆两端的平衡螺母（选填“左”或“右”），使杠杆在_______位置保持平衡。实验中若在杠杆A点挂4个50克钩码，则在B点应挂 个相同规格的钩码才能使杠杆仍保持水平平衡。
答案
左；水平；3
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如图所示为“探究杠杆平衡的条件”的实验装置。实验前应先向____端调节杠杆两端的平衡螺母（选填“左”或“右”），使杠杆在_______位置保持平衡。实验中若在杠杆A点挂4个50克钩码，则在B点应挂 个相同规格的钩码才能使杠杆仍保持水平平衡。
左；水平；3
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| When Amy wrote her first novel in secondary school, she never imagined that she would become a writer one day. Like many 1 writers on the Internet, the 2 woman got into this online world accidentally (偶然地). Three years ago, Amy worked in a medical industry. Her job kept her busy for six months and left her almost 3 to do for the rest of the year. To fill the time, she started writing 4 on the Internet. Her first novel was about her neighbors and their life 5 she is familiar with. Amy has been interested in writing 6 she was a child. At first, she just wanted to share her novels 7 people she knew. Then one day an editor of a famous website emailed her, asking her 8 she would like to sell the electronic copyright (授权) of one of her novels. She 9 immediately and the novel was moved to the VIP section of the website. She got $ 1,500 for that. Now Amy is a full-time 10 . So far her eight novels have come out online, and five of them 11 . "The Internet made me famous and brought me 12 ," she said. "I earn much more money now- about $60,000 a year. I am 13 with my career, but there is one problem-that my talent might run out after five years and I'll have to 14 to work in the medical industry." "Before that day comes, I'll keep 15 for the readers with my light and close-to-everyday-life writing style," said Amy with a smile. | ||||
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