A.
B.
C.
[单选题]A.150B.160C.180D.200
[单选题]A.150B.160C.180D.200
[单选题]A.28.14B.31C.34.25D.45.51
[单选题]A.B.它可与银氨溶液发生银镜反应C.它可使溴水褪色D.
[单选题]A.28.14B.31C.34.25D.45.51
[单选题]A.B.它可与银氨溶液发生银镜反应C.它可使溴水褪色D.
[单选题]A.F1=18.52NB.F1=19.42NC.F1=19.52ND.F1=17.12N
[单选题]A.0B.1C.2D.3