()是通过对项目进行更多、更广泛的调查研究或统计分析后,再对项目风险进行估计的方法。
A.最小后悔值概率法
B.不等概率法
C.等概率法
D.贝叶斯概率法
参考答案:D
根据短文内容和所给汉语提示,写出单词的正确形式。每空限填一词。
Mr. Jackson says his favorite great book is The Adventures of Tom Sawyer. It was小题1: (写)by Mark Twain in the 19th 小题2:_____(世纪) The story is about a小题3:_____(活泼的)and clever young boy Tom and his friends. They go looking for treasure(宝藏)on an 小题4:____(岛)in the middle of the Mississippi River. Mr. Jackson thinks his favorite scene in the book is when everyone thinks Tom is 小题5:_____(死的)and has a funeral(葬礼),but Tom 小题6:_____(躲藏)and watches,and then suddenly he appears. The ending of the story really 小题7:_____(使'原奇)everyone. The themes of the story are to do with children growing up and becoming more serious.
At the same time,it talks about freedom, social 小题8:_____(规则) and how people are punished(惩罚)for bad behaviors. Finally, Mr. Jackson asks us to read the book. He is sure if we can put our 小题9:_____(心)into it, we can understand the story 小题10:_____( 容易) .
茎叶具有保水功能、根系发达的植物,能在沙漠中生活,而茎叶保水功能差、根系不发达的植物,则不能在沙漠中生活,达尔文对这一现象的确切解释是()。
A.生物个体之间存在着或多或少的差异,都具有遗传和变异的特性
B.生物具有遗传和变异的特性
C.生物的变异对生物的生存都是不利的
D.适应环境的变异个体容易生存