一组平行测定中有个别数据的精密度不高时,正确的处理方法是( )。
A.舍去可疑数
B.重做
C.测定次数为5~10,用Q检验法决定可疑数的取舍
D.不舍去
参考答案:C
These are two bananas, _____ first and put _____ the blender. [ ]
A. peel them; them into
B. make them; into them
C. cook them; them into
D. pour them; into them
计算迭加速度Va
计算速度随深度的相对变化率β
知:V(z)=4500m/s,V0=1880m/s,Z=3650m.且V(z)=V0(1+βz).
求:β=?