A.5cm
B.6cm
C.8cm
D.10cm
E.15cm
[单选题]A.4.25PaB.4.25kPaC.41.68PaD.41.68kPa
[单选题]A.4.25PaB.4.25kPaC.41.68PaD.41.68kPa
[单选题]A.≥B.≤C.>D.<
[单选题]A.≥B.≤C.>D.<
[单选题]A.4.25PaB.4.25kPaC.41.68PaD.41.68kPa
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