When using online tests, consider such factors as accessibility, affordability, user-friendliness, security of test results, compliance with ethical principles, reliability, and validity.

在使用在线检查的时候，要考虑这些因素：方便、价格低廉、亲切友好的用户界面、检查结果的安全性、遵循道德原则、可靠性及有效性。

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The Security Council resolution was put in place after North Korea' first nuclear weapons test and the launch of a ballistic missile.

VOA: standard.2009.04.03

The failed terror bomb plot constitutes Mr.Obama's most serious national security test to date, and the president has been quick to acknowledge that there is plenty of room for improvement.

VOA: standard.2010.01.06

Clinton said a North Korean missile launch, for any purpose, would be a provocative act and a violation of U.N.Security Council resolution 1718 - approved after its 2006 nuclear test- demanding an end to Pyonyang's nuclear weapon and missile programs.

VOA: standard.2009.03.25

She cites a study done at the Massachusetts Institute of Technology last February showing that only two out of 60 test subjects noticed a lack of security certification on a banking site.

FORBES: Spear The Phishers--Not The Fish

The authority said it had paid a local IT company to test the security of its internal systems in May 2012.

BBC: Hackers target Kent Council Council's computer systems

David Albright and Andrea Stricker, of the Institute for Science and International Security, said the latest test could be a measure of progress.

NPR: NKorean Nuclear Test May Be Intelligence Windfall