A.50+10% B.55±5% C.50%~60% D.55-5%~55+5%
A.22±1℃ B.21℃+2℃ C.21℃~23℃ D.22-1℃~22+1℃
A.twj=0.47txp+0.53tmax B.twj=0.53txp+0.47tmax C.twj=0.3txp+0.7tmax D.twj=0.53tmp+0.47tmin