问题
单项选择题
血细胞比容是指血细胞（）
A.与血浆容积之比
B.与全血容积之比
C.与全血重量之比
D.与白细胞容积之比
E.与血管容积之比
答案
参考答案：B
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血细胞比容是指血细胞（）
A.与血浆容积之比
B.与全血容积之比
C.与全血重量之比
D.与白细胞容积之比
E.与血管容积之比
参考答案：B
When I was a law professor, a student reported that I made an error in grading his exam by giving him too many points．He was 41 and after thanking him for his honesty, I changed the grade in my 42 . His beaming(欢笑的）face turned to shock．"You're 43 my grade?" he said angrily．"I would never have come in 44 …" He didn't finish the 45_ , but it was obvious that his display of honesty was 46_ .He thought he'd have it all —praise and the higher grade． Several colleagues thought I should have let the higher grade 47 because all I'd accomplished was to discourage him from being 48 in the future．And every time I tell this story, some people agree to this 49 ． But I can't see how I could give good reason for worsening my_ 50 in grading by undermining(损害） the honesty of all my grades by failing to 51 an error．The grade itself would be a dishonest 52 of his knowledge and it would have been 53 to other students．How could I 54 give a student a gift of an unearned grade? I know 55 reporting an error in one's favor is unusual, but, like 56_ too much change, it's clearly the right thing to do．People of character, those with real honesty, hate to give up 57 as much as anyone else．The difference is that for them a good conscience and reputation is 58 enough to give reason for the cost of doing the right thing． Perhaps lowering the student's grade did 59 him from being honest in the future, but bribing（贿赂）him to be honest so that he does the right thing when its cost-free would have 60 him even more．The duty to be honest is about right and wrong, not risks and rewards．
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