如图5-59所示,单元体的最大切应力为()。
A.10MPa
B.20MPa
C.15MPa
D.30MPa
参考答案:C
解析:
σ1=10MPa,σ2=0,σ3=--20MPa,。
You are saying that everyone should be equal, and this is ___ I disagree.
A.why
B.where
C.what
D.How
100克的5倍是1千克的百分之几( )
A.20%
B.5%
C.50%
D.100%