关于反应性血小板增多,正确的是
A.微血管栓塞和出血少见
B.血小板计数<1000×109/L
C.脾一般不大
D.血小板形态和功能异常
E.白细胞计数正常
参考答案:A,B,C,E
试讨论函数
,在x=0处的可导性.
_____ my school days in the Affiliated High School of Shanxi University, I had a sense of pride.
A.Looking up to
B.Looking down upon
C.Looking away from
D.Looking back on