NASA's upcoming GRAIL mission, which will precisely measure the Moon's gravity to paint a picture of its interior, may provide some concrete answers, according to the science journal.

据科学杂志称，NASA将要进行的“圣杯”计划将精确测量月球的引力，借此画出它内部的图片，这有可能会给我们提供更确切的答案。

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Soldiers would take every measure necessary to preserve security, the interior ministry said.

士兵将采取一切必要措施维护安全，内政部说。

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Some research point out, the majority of network security threatens from the system interior, so we are urgent need to use one kind of new measure and the technology safeguard the network security.

有研究指出，大部分的网络安全威胁来自系统内部，因此，我们迫切的需要采用一种新的措施和技术来保障网络的安全。

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It's harder to measure quality in more subjective fields such as interior design or hair styling.

WSJ: A License to Shampoo: Jobs Needing State Approval Rise