题目内容

如果组间变异与组内变异相差不大，那么处理因素对因变量的影响存在。

A. 对
B. 错

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按照课文内容排序，只填阿拉伯数字1 2.....1. moved to London as an immigrant2. was trained as a ballet dancer3. served for the women and children in tough places4. was born in Holland in 19295. her country was occupied by Nazi6. was appointed a Goodwill Ambassador for UNICEF7. was afflicted by cancer and died in 19938. acted in the famous movie Roman Holiday9. escaped from Nazis and became a refugee10. won many Academy Awards

What did he benefit from this trip?He set out on his journey armed with his (1)for sports and his taste for a (2) but as he finished his trek, he discovered something much deeper.He said “My generation, people went more around at school, and we were told to be same, but I think (3)(3个单词) is important. My trip is about doing (4)_（3个单词）. I’m doing this, and that makes me (5)_, that makes me (6)__. I think I represent this kind of (7)_, I think I can pass this kind of (8)__ to our fellow Chinese.”

Reorder the events according to the text （根据课文内容，按时间顺序对下列描述重新排序）

简述服务的作用。