23,22,20,18,15这组数的中位数是______.
23,22,20,18,15这组数的中位数是20.
故答案为:20.
There is still something we can try _____ those dying animals.
A.to save
B.saving
C.to be saved
D.being saved
贝克小姐的家里人有()
A.只有一个七老八十的姑妈
B.一个姐姐
C.一个妹妹
D.一个老妈