A.1/2
B.-1/2
C.1
D.0
[单选题]( ).A.1/2B.-1/2C.1D.0
[单选题]A.B.C.D.
[单选题]A.两对边支承板应按单向板计算B.C.D.
[多选题]A.心率B.C.TSH水平D.甲状腺重量E.