皮皮学，免费搜题
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搜题
【单选题】
血钾的正常值范围是A.
0.5~1.0mmol/L
B.
1.5~2.0mmol/L
C.
2.5~3.0mmol/L
D.
3.5~5.5mmol/L
E.
6.0~7.0mmol/L
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皮皮学刷刷变学霸
举一反三
【单选题】"...lofty ceilings are all made of gorgeous, dark wood that is so impeccably polished that it shines.” The underlined word means________.
A.
improve in behavior, intellectual interests, etc
B.
make or become smooth and shiny
C.
a smooth shiny surface produced by rubbing
D.
the quality of being graceful
【简答题】21 按照古代传说托 鸿雁 、鲤鱼捎书带信,但没有用的句子是___________________________