815的分数单位是115,它有8个115;913的分数单位是113,它里面有9个113.
故答案为:8,9.
Some naughty boys like to play ________ trick on their classmates on April Fool’s Day.
A.a
B.an
C.the
D./
男,46岁,突发头痛、呕吐1h就诊。既往有高血压病史。体检:血压165/95mmHg,神志清,颈项强直,Kernig征阳性,四肢肌力正常,Babinski征阴性。
下列治疗错误的是()
A.尼莫地平
B.阿司匹林
C.卧床4~6周
D.保持大便通畅
E.止血药