c(din)ɫ(li)ɫᘠY(ji)Էĩo(w)ζࡣˮ
2) ˎãVVЧͶ(q)(xin)x(chng)ˎ(du)N(dng)θc(xin)x(chng)ͷξ(xin)x(chng)x(chng)x(chng)иЧ
3) m(yng)Y(q)(xin)x(chng)(du)N(dng)θc(xin)x(chng)ͷξ(xin)x(chng)x(chng)x(chng)Ч
4) ÷c
A. }(ni)һÿwţi7.5Ȯ؈10ˣ25
B. }עҺƤ(ni)ע䣺һÿwţi7.5Ȯ؈1025
5) ע(xing)
A. (yn)oˎ,eR(du)УÕr(sh)횾_Ӌ(j)
B. жðƷȡ
C. a(chn)ڽá
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