本答案对应课程为:点我自动跳转查看
本课程起止时间为:2019-02-25到2019-02-25
1、 问题:口袋中有编号分别为1、2、3的三个球，试写出下列随机试验的样本空间。（1）从口袋中任取2颗球，观察取到的球的编号；（2）先从口袋中取一颗球，观察其编号后放回口袋中，再从口袋中取一颗球并观察编号；（3）先从口袋中取一颗球，观察其编号后，从剩余的球中再取一颗并观察编号。
评分规则: 【 （1）
注：正确得6分，错误得0分。
（2）
注1：正确得6分，错误得0分；注2：也可以采用显示枚举罗列出样本空间中的所有9个元素。
（3）
注1：正确得8分，错误得0分；注2：也可以采用显示枚举法罗列出样本空间中的所有6个元素。
】 点我阅读全文
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本课程起止时间为:2021-03-07到2021-07-09
本篇答案更新状态:已完结
1、 问题:What is the right order of the formation of the Chinese Characters?
选项：
A:oracle bone inscription —— small seal characters —— big seal characters—— clerical scripts —— regular scripts
B:oracle bone inscription —— big seal characters —— small seal characters—— clerical scripts —— regular scripts
C:oracle bone inscription —— small seal characters —— big seal characters—— regular scripts —— clerical scripts
D:oracle bone inscription —— small seal characters —— clerical scripts —— big seal characters —— regular scripts
答案: 【oracle bone inscription —— big seal characters —— small seal characters—— clerical scripts —— regular scripts】 点我阅读全文
本答案对应课程为:点我自动跳转查看
本课程起止时间为:2022-02-21到2022-06-27
本篇答案更新状态:已完结
1、 问题:Directions： There is one passage in this section and it is followed by some questions or unfinished statements. For each of
them, you must choose the best answer from the four choices marked A, B, C and D.
There is now a growing belief that fathers, do play an important role in raising children and do leave a deep mark on their daughters, not just their sons. It is now believed that regardless of their age, daughters who have meaningful, comfortable relationships with their fathers are generally more self-confident and independent, have better relationship with men, are less depressed, have fewer eating disorders and drug or alcohol problems and achieve more in school and at work. 点我阅读全文
本答案对应课程为:点我自动跳转查看
本课程起止时间为:2021-03-03到2021-06-30
1、 问题:The Nu Nationality is descended from the aboriginal residents in _ counties of Yunnan Province and also from the "luluman" tribe in the Tang Dynasty.
选项：
A:Heqing and Yiliang
B:Fumin and Songming
C:Fugong and Gongshan
D:Fengqing and Yongde
答案: 【Fugong and Gongshan】 点我阅读全文
