小明从家里出发向正北方向走了800米,接着向正东方向走了600米,现在小明离家 _________ 米.
1000
. — I’m going to attend a job interview. Would you like to tell me something about your experience?
— ______. Let me tell after class.
A.That’s all right
B.Of course
C.Go ahead
D.It just depends
一组数据:10、5、15、5、20,则这组数据的平均数和中位数分别是
A.10,10
B.10,12.5
C.11,12.5
D.11,10