Scientific knowledge about the damaging effects of nuclear-weapons testing helped to end such tests. Those findings haven’t changed.
* 时间复杂度：O(len1 + len2)，空间复杂度：O(len2)（栈+Map的空间）
。关于这个话题，雷电模拟器官方版本下载提供了深入分析
「這裡這樣的氣溫其實挺舒服的，」他說，「零下五度已經是最暖的時候。氣溫可以降到約零下40度，但平均大約是零下20度。」
Democratic members of Congress have expressed astonishment and anger at what they claim is the incompetence of the Trump administration after the US military used a laser on Thursday to shoot down what it thought was a threatening drone on the US-Mexico border in Texas but later turned out to belong to US Customs and Border Protection (CBP).
调解达成协议的，仲裁庭应当制作调解书或者根据协议的结果制作裁决书。调解书与裁决书具有同等法律效力。