1,0.3米。2.A,3.B,4.A,5.A,6.B,7.C,8.C,9.A,10.A,11.A,12.C,13.A,14.C,15.B,16.C,17.C,18.A,19.C,20.C,21.A,22.A.C,23.C
1.B2.A,3.B,4.A,5.A,6.B,7.C,8.C,9.A,10.A,11.A,12.C,13.A,14.C,15.B,16.C,17.C,18.A,19.C,20.C,21.A,22.A.C,23.C