1c
A SɫĽY(ji)Իoηĩo}}SɫY(ji)Էĩˮ
B Ʒ1ஔ(dng)1000λ
C (ni)ȫעoˎLЧá
2 ˎãVVmԾmԾԭw˴wùwwҲһ
3 m(yng)YҪڷݴcUɳTϾȾ(ţiS)ϗUϗUȾiⲡuԺҲί˴w؈ĂȾؚѪA(y)ԭwxwֲډUӌm(ni)ĤMӄʹдM(jn)LD(zhun)ʵá
4 ÷c
A ÿ1000A(y)^w750~1500B7ÿˮ100~400i110~280ˡ
B (ni)һÿwأ50i١x10~20؈20һ2~3
C o}ע䣺һÿwأu25iţR25~50ˣ؈ 5~10һ2
5 ע헣
A cAҺͺԁˮ
B Ʒ(ni)ղȫҎ(gu)t(yng)cƷrxӵˎϹ
C 귴cRلò˃(ni)Rע䱾Ʒɰl(f)θc(yng)á
D LڻʹTl(f)ظȾSBSKȱYKԵȲ(yng)ˎgF(xin)aIIԭİl(f)r(yng)]аl(f)ظȾĿһ(jng)_\(yng)ͣˎȡCԷδʩ