While they fly around the far side of the Moon, the crew will have three hours dedicated to lunar observation - to gaze, take images and to study its geology, which will help plan and prepare for a future landing at the Moon's south pole.
arr[j + gap] = key;
。业内人士推荐夫子作为进阶阅读
Цены на нефть взлетели до максимума за полгода17:55
UPDATE: Read the solution here