单项选择题
A.250B.260C.270D.280E.290
A.AB.BC.CD.DE.E
A.0.8400,0.4357B.-0.8400,-0.4357C.-0.8400,0.4357D.-0.8399,-0.4536E.-0.8400,0.8400
A.50B.52C.55D.57E.59
A.214.8B.238.8C.269.8D.294.8E.320.8
A.0.125B.0.25C.0.38D.0.50E.0.63
A.仅①正确B.仅②正确C.仅③正确D.仅④正确E.全都不正确
A.10.13B.11.35C.11.53D.13.01E.13.15
A.1.31B.1.32C.1.33D.1.34E.1.35
A.25B.39C.266D.1351E.1512
A.4942.5B.4924.5C.4294.5D.4429.5E.4249.5