A.
B.
C.
[单选题]A.r=p;p=q;q=rB.r=x;x=y;y=rC.D.z=p;p=q;p=z
[单选题]A.8,(-2,2]B.8,[-2,2]C.不定,(-2,2]D.8,[-2,2)
[单选题]A.B.C.D.不确定的
[单选题]A.B.C.D.不确定的
[单选题]A.8,(-2,2]B.8,[-2,2]C.不定,(-2,2]D.8,[-2,2)
[单选题]A.325.5kPaB.375.5kPaC.397.6kPaD.447.6kPa
[单选题]A.325.5kPaB.375.5kPaC.397.6kPaD.447.6kPa