There are 8 books on a shelf, of which 2 are paperbacks and 6 are

您还没有登录，登录以后才可以查看答疑和进行提问。

试题详情

There are 8 books on a shelf, of which 2 are paperbacks and 6 are hardbacks. How many possible selections of 4 books from this self include at least one paperback?

A、40.0
B、45.0
C、50.0
D、55.0
E、60.0

答案：D

专业教师答疑

最新

提问

3
评分

3
浏览

Problem Solving

请老师讲一下

问个问题

答疑小程序

最热提问

Reading Comprehension
The passage is structured to lead to which of the ......
Reading Comprehension
which of the following is information supplied in ......
Problem Solving
If x, y, and z are consecutive odd integers where ......
Sentence Equivalence
After many years of feeling _____ by his seniors m......
Text Completion
Even the reader acquainted with the outlines of Pu......
Text Completion
Reading chunks of Shapiro’s verse in one sitting......
Sentence Equivalence
Agencies responsible for protecting natural resour......
Problem Solving
If 4x+3>-13 , which of the following could be the ......

试题详情

专业教师答疑 最新 提问

问个问题

答疑小程序

最热提问

专业教师答疑

最新

提问