1L(fng)i(sh)Ҫ(yng)ͨL(fng)Ҫx1mϣiǰϺӷֹҹL(fng)u
2|ݣiϼ䁼s20 cmܛɲݿע|ړQl(f)ù
3ľмȦ(ni)䁼s10 cmľмЧض
4B(yng)ܶȣӼs40B(yng)ܶ
5ϣһЩ֬ͬr(sh)m(dng)ء
6O(sh)ßԴɲßL(fng)tůL(fng)C(j)útO(sh)ṩԴ(du)ii늟t⾀(xin)ݵȼӟO(sh)iṩ~Դ
7עͨL(fng)ڱضȵͬr(sh)ɺҕͨL(fng)ÿխh(hun)ضߕr(sh)M(jn)L(fng)ٲ^(gu)0.2 m/s
8iᱣָȴH(hu)(do)iض½ѕr(sh)(hu)l(f)D߀(hu)ɼ(x)^l(f)ٷѩړQ|۶c(din)ԼSi߶ʹʯҡúľ̿ˮ
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