四级The unit of radiation is called rem.
辐射的单位叫做rem。
1996年1月大学英语四级(CET-4)真题
四级Scientists have reason to think that a man can put up with far more radiation than 0.1 rem without being damaged; the figure of 60 rems has been agreed on.
科学家们有理由认为,一个人可以忍受远高于0.1雷姆的辐射而不会受到损害;60雷姆的数字已经达成一致。
1996年1月大学英语四级(CET-4)真题
考研The brain is as active during REM (rapid eye movement) sleep—when most vivid dreams occur—as it is when fully awake, says Dr. Eric Nofzinger at the University of Pittsburgh.
匹兹堡大学的Eric Nofzinger博士说,当大多数生动的梦发生时,大脑在REM(快速眼动)睡眠期间和完全清醒时一样活跃。
2005年全国硕士研究生入学统一考试英语试题
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