www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

USEUROPEAFRICAASIA 中文雙語Fran?ais
China
Home / China / Education

Astronomer points out enrichment book gaffe

By China Daily | chinadaily.com.cn | Updated: 2017-08-01 16:53

An astronomer in Shanghai has voiced his concerns over an exercise in an enrichment book that requires primary school students to document their observations of the moon.

According to the Xinmin Evening News, first-grade students are required to observe the shape of the moon between 7 pm and 9 pm for 28 consecutive nights in order to complete the task.

Tang Haiming, secretary general of the Shanghai Astronomical Society, was quoted as saying that the task is misleading because the moon rises at a different time every day. For example, people living in Shanghai were able to see the moon rise at 9:04 pm on July 12 and descend at 7:32 am the next day. On July 13, moonrise took place at 9:42 pm and moonset was at 8:32 am the next morning.

The difference in timing was greater on July 23 when moonrise was at 4:36 am. Moonset, on the other hand, was at 6:43 pm.

"It's a shame that the editors do not have enough knowledge about the science that led to such a mistake in a science book," said Tang.

He Qi in Shanghai contributed to this story.

Editor's picks
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 在线免费观看亚洲视频 | 日韩欧美国产亚洲 | 亚洲天堂久久精品成人 | 国产伦精品一区二区三区网站 | 97久久免费视频 | 又刺激又黄的一级毛片 | 国产精品毛片在线更新 | 国产成人综合亚洲 | avtom影院入口永久在线观看 | 国产精品伦理久久久久 | 男人的天堂毛片 | 国产成人亚洲综合 | 精品三级国产一区二区三区四区 | 成人午夜精品久久不卡 | 日本三级香港三级三级人 | 免费视频成人国产精品网站 | 香蕉521av网站永久地址 | 国内精品1区1区3区4区 | 国内自拍第1页 | 亚洲高清在线看 | 成人免费视频国产 | 亚洲爱爱天堂 | 国产精品亚洲第一区柳州莫青 | 美女黄影院 | 国产手机看片 | 欧美精品另类 | 欧美一级欧美三级在线观看 | 亚洲国产成人精品91久久久 | 欧美高清免费一级在线 | 中文字幕亚洲高清综合 | 精品国产一区二区三区www | 免费国产成人高清在线观看不卡 | 亚洲精品人成网在线播放影院 | 九九九精品视频免费 | 亚洲免费人成在线视频观看 | 国产精品一区在线观看 | 亚洲精品一区二区三区第四页 | 国产手机精品一区二区 | 一级特黄aa大片欧美网站 | 国产精品久久久久久久hd | 在线一区二区观看 |