流量测量有哪些方法有哪些?
参考答案:
速度式、容积式和质量式三大类。
血小板直方图的特征与意义为()
A.正常时分布范围为50~200fl
B.血小板的MPV越高,直方图面积也越大
C.血小板的大小差异越大,直方图的基底部越宽
D.血小板的数量越多,直方图的峰值越高
E.曲线呈双峰
During the fire, he () people into groups which carried sand and water to throw onto the flames.
A. called
B. organized
C. made
D. planned