嫦娥三号探测器在探月时采用了软着陆技术，实现软着陆的手段是（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='31813' and id < 2542647 and id<>'2542647' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31813' and id > 2542647 and id<>'2542647' order by id asc limit 5