空间中有五个点，其中有四个点在同一平面内，但没有任何三点共线_爱下问搜题

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问题选择题

空间中有五个点，其中有四个点在同一平面内，但没有任何三点共线，这样的五个点确定的平面最多可以是（　　）

A．4个

B．5个

C．6个

D．7个

答案

答案：D

完形填空

As a teaching student, I was sent on my first practice at a high school．During my practice, I      realized high school hadn't changed since I was there and still an awful place of Cliques（派系）．
Jess, a Year 8 student, always respected her classmates,      the lack of respect she usually received in return．Kids constantly laughed at her behind her back．As a teacher, your instinct（本能） is to      students like Jess, but you soon realize that there's only so much you can actually do．
Tyson was at the    end of the scale（等级）．A handsome Year 12 student, and always surrounded by mates, it was clear that he was a confident and popular young man．
When Jess asked to perform a solo act （独唱）in the school talent show, I    to allow her to take the stage, fearing that she might face teasing．However, I knew that it would be unfair to say no on these grounds, so her name made it onto the list of  ．
The day of the show, the whole school    in the auditorium（礼堂）．Shortly after the acts began, it was Jess's   ．Smiling, she stepped onto stage．The music started and, to my horror, she   the first line of the song．She became confused , sang in the wrong key and forgot her lyrics （歌词）．As she struggled through the song, kids whispered and laughed．
Jess looked   and was about to give up when the sound of somebody clapping along to the  of the song began to rise above the crowd．It was Tyson．
He was clapping proudly and urged his friends to join in and, surprisingly, they did．
Slowly, from Tyson's group to the rest of Year 12, finally throughout the auditorium, the claps spread．
The smile on Jess's face that day is one that I'll never forget．Tyson changed my life by restoring my    in the goodness of youth．

B．disappointedly

A．in spite of

D．In addition to

填空题

欢迎词的结构包括谓称和（）