However，researchers also observed __6__ in this case.According to two recent studies，compared with two white roommates，roommates of different __7__ may experience such big conflicts that one has to move out and live __8__.

　　Grace Kao，a professor at Penn said she was not__9__ by the findings.In her opinion，this may be the first time that some of these students have __10__ with someone of a different race.

　　At Penn，students are not asked to mention race when applying for their __11__.In this way，students are thrown together __12__.

　　“In the past two years，I've experienced roommate conflicts between interracial students，” said one Penn resident advisor (RA)．To give a better picture，she __13__ that some conflicts provided more multicultural acceptance，but some showed unpleasant differences.Besides，these conflicts have also occurred among roommates of the __14__ race.

　　Kao said it was __15__ to conclude from any one of the above studies，saying scientists must study more students' background characteristics.

　　【语篇导读】　本文是一篇说明文，当新生知道自己要与不同种族的室友生活在一起时，总是感到害怕。不同种族的学生生活在一起可以减少之间的偏见，并迫使他们交朋友，但同时也会导致一系统的问题。

　　1．A.disappointment B．expectation

　　C．worry D．ambition

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