A.58.5Pa,1690Pa
B.46.8Pa,1352Pa
C.31.5Pa,910Pa
D.23.4Pa,676Pa
[单选题]A.58.5Pa,1690PaB.46.8Pa,1352PaC.31.5Pa,910PaD.23.4Pa,676Pa
[单选题]A.198875PaB.218875PaC.228707PaD.248707Pa
[单选题]A.198875PaB.218875PaC.228707PaD.248707Pa
[单选题]A.28500B.28800C.27000D.28650
[单选题]A.>101.325kPaB.=101.325kPaC.<101.325kPaD.不能确定
[单选题]A.直线B.圆C.正弦曲线D.椭圆
[单选题]A.68.8B.73.5C.85.3D.78.1
[单选题]A.1:2B.1:4C.1:1D.1:8
[单选题]A.>101.325kPaB.=101.325kPaC.<101.325kPaD.不能确定
[单选题]A.直线B.圆C.正弦曲线D.椭圆