20.已知α为锐角,且$\sqrt{3}$tan(α+10°)=1,则α的度数为( )
0 278906 278914 278920 278924 278930 278932 278936 278942 278944 278950 278956 278960 278962 278966 278972 278974 278980 278984 278986 278990 278992 278996 278998 279000 279001 279002 279004 279005 279006 279008 279010 279014 279016 279020 279022 279026 279032 279034 279040 279044 279046 279050 279056 279062 279064 279070 279074 279076 279082 279086 279092 279100 366461
| A. | 30° | B. | 45° | C. | 20° | D. | 35° |