A . π
B . 2π
C . 3π
D . π/2
[单选题]360°等于( )弧度A.πB.2πC.3πD.π/2
[判断题]角频率的单位是rad(弧度)。()A.对B.错
[单选题]1rad约等于()。A .180°B .57.296°C .0.017°D .28.648°
[问答题] 求75°等于多少rad?
[单选题]4π/3rad等于()A . (A)240°;B . (B)241°;C . (C)242°;D . (D)243°
[单选题]1戈瑞(Gy)等于()拉德(rad)。A.10B.0.01C.1D.E.100
[单选题]1戈瑞(Gy)等于()拉德(rad)。A.10B.0.01C.1D.E.100
[单选题]1戈瑞(Gy)等于多少拉德(rad)?( )A.10B.0.01C.1D.2.58×10-4E.100
[单选题]1戈瑞(Gy)等于多少拉德(rad)?( )A.10B.0.01C.1D.0.1E.100
[单选题,B型题] 1戈瑞(Gy)等于多少拉德(rad)A . 0.01B . 2.58×10-4C . 1D . 10E . 100