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嫦娥四号放多少钱？大概和建造一条1公里长的地铁差不多。_我的网站

一 |     WASHINGTON -- The Supreme Court on Monday rejected North Carolina's appeal in a dispute with animal rights groups over a law aimed at preventing undercover employees at farms and other workplaces from taking documents or recording video.The justices left in place a legal victory for People for the Ethical Treatment of Animals in its challenge to the law, which was enacted in 2015. PETA has said it had wanted to conduct an undercover investigation at testing laboratories at the University of North Carolina at Chapel Hill but feared prosecution under the law.An appeals court ruled that the law could not be enforced against PETA — and likely others in similar situations — when its undercover work is being performed to conduct newsgathering activities.The law is similar to so-called state ag-gag laws — aimed at gagging undercover activists who record footage of the animal agriculture industry — that have been struck down by several courts around the country over free speech concerns. The Supreme Court has so far refused to weigh in.。1月14日，在国家新办召开的新闻发布会上，国家航天局副局长、探月项目副主任吴燕华在发射会上表示，经过论证，这次任务是按照月球探测新目标进行的。在月球背面的计划，花费很少，而且，形象地说，它可能类似于修复一个千米地铁。在这次会议上，中国探月项目负责人回答了记者的问题，当记者问：“长安四号项目的总投资是多少？”为什么这是使用纳税人资金的好方法？吴艳华介绍，嫦娥四号是嫦娥三号的备用卫星。中国航天局领导国际国内科学家重新论证和规划了这一有意义的事件。

二 | 经过论证，根据月球背面探测的新目标来执行这一任务的成本与建造一公里长的地铁的成本相差不大。吴艳华指出，中国政府对太空的投资，特别是对探月和深空的投资，与中国经济社会发展的总体水平是一致的。作为一个太空大国，中国应该为探索宇宙奥秘、造福人类社会作出巨大贡献。据了解，目前，城市地铁平均每公里造价约5亿元，部分特殊城市造价约10亿元。据了解，北京地铁16号线每公里造价12亿元。

三 | 相关读物：在“长安五号”之后，中国还将示范建立月球研究基地，美国国家航空航天局：中国第一次火星探测任务将在2020年左右进行，并开始！长安5号将于今年年底左右推出。

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