(jng)} x}P(gun)܌W(xu)cRΑB(ti)P(gun)ϵU_У
A. ܌W(xu)RΑB(ti)
B. ߶һ(jng)(j)A(ch)ķӳ֮(w)
C. ߶һA
D. ߶(d)
𰸡 ABCD
RF(xin)ĿͣڵķӳcһĽ(jng)(j)ֱ(lin)ϵ^^c(din)Ŀη˼ČW(xu)ˇg(sh)ڽ܌W(xu)ƌW(xu)Rʽ܌W(xu)ͬRΑB(ti)ʽһһ(jng)(j)A(ch)ķӳ֮(w)һA(d)ԣ䲻ͬc(din)܌W(xu)RΑB(ti)
3.܌W(xu)^ͷՓĽy(tng)һ
һ^˼ԭtھwJ(rn)R͌(sh)`бF(xin)鷽ՓP(gun)@ЩՓʲôӵ^ʲôӵķՓ܌W(xu)^ǷՓ,܌W(xu)^ͷՓĽy(tng)һ
܌W(xu)Ļ}
܌W(xu)Ļ}˼SʹڵP(gun)ϵ}vʷϵȫ܌W(xu)ʼKLJ@@}չ_