皮皮学，免费搜题
登录
搜题
【简答题】
Remember when we landed humans on the Moon? When that happened, people looked at each other and said, "If we can do this, we can do anything." What are they going to think when we actually form a colony on Mars? Most importantly, it will make us a ______species. And that means humans will survive no matter what happens on Earth. We will never be the last of our kind.
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】盘区准备方式分类
【单选题】1教育局督学组到学校检查工作 , 临时在每个班各抽调 2 人参加座谈; 2某班期中考试有 15 人在 85 分以上, 40 人在 60-84 分 ,1 人不及格.现欲从中抽出 8 人研讨进一步改进教和学 . 3某班元旦聚会,要产生两名“幸运者” 对这三件事,合适的抽样方法为 ( )
A.
分层抽样，分层抽样，简单随机抽样
B.
系统抽样，系统抽样，简单随机抽样
C.
分层抽样 , 简单随机抽样 , 简单随机抽样
D.
系统抽样，分层抽样，简单随机抽样
【简答题】others keep you【8】for each action and give you helpa) they are to be present in your daily life and workb) for instance: partner, family
【简答题】SS3B机车零压保护分闸电路取自导线430的目的是保证零压保护仅在（）投入运行时才起作用。
【简答题】How much money should each friend give Ross if everyone is included? Everyone should give Ross ___________. 2. How much money should each person give Ross without Monica? Each person should give Ross ...
【简答题】SS 3 4000系机车零压保护分闸电路取自导线430的目的是保证零压保护仅在（）投入运行时才起作用。
【简答题】They give each other a gold ring to ____________ their marriage commitment
相关题目：
参考解析：
知识点：
题目纠错 0
发布
