“建安七子”中成就最高的作家是( )
A.徐干
B.陈琳
C.王粲
D.孔融
参考答案:C
-The problem wasn't difficult for him,was it ?
-______. He should have been given a more difficult one. [ ]
A. No,it was
B. Yes,it was
C. Yes,it wasn't
D. No,it wasn't
随机抽样调查了某地100例健康女性的血红蛋白含量,算得其均数为117g/L,标准差为10g/L,则其95%医学参考值范围为()
A.117±1.645×10
B.117±2.58×10
C.117±2.58×10÷10
D.117±1.96×10÷10
E.117±1.96×10