1A(y)|(zh)һNǰ֧( C )
A̿BM(jn)ȿCϿDY(ji)
2P(gun)ڹ׃Įa(chn)ԭf_( c )
AڬF(xin)(chng)ʩh(hun)l(f)׃B O(sh)Ӌ(j)ϵe(cu)`회(du)D
Cڳа(du)(xing)ĿµҪDʹ¼g(sh)бҪ׃?c)O(sh)Ӌ(j)
3ɵĹLа̿Ը(j)ͬsҪM(jn)йrڴ_J(rn)r(sh)g(j)ͬͨ×l13.2 s( D )
A7(ni)B14(ni)C21(ni)D28(ni)
4ĽӵY(ji)(bo)ĿY(ji)Y֮r(sh)ޞ45t̿Y(ji)(bo)Ľ~(yng)ԓ(C)O
A500fԪ
B500fԪ- 2000 fԪ
C2000Ԫһ5000fԪD 5000fԪ
5rĿĄԷ֞( B )
Aͬ(ni)rͺͬr
BLrM(fi)a(b)r
C(xing)r;Cr
Drͷr
6ʩ^аl(f)茦(du)ԭO(sh)Ӌ(j)׃(yng)ǰ( B )ԕʽа˰l(f)׃֪ͨ
A7B14
C15
D28E 30
7ڹ̳аͬlһҪҎ(gu)l(f)λ()_ǰܸoаλ(ҷ)һ~Ĺ( D )
AA(y)(zhn)B A(y)̿
CA(y)M(jn)ȿDA(y)Ͽ
8ЌژI(y)r¼( B )
Aԭ((zhn)(zhng)y)ʹܓpʧl(f)M(fi)
Bʩ|(zh)ϸĹ
C|(zh)l׃M(fi)ӼL
DҷģɶʺȡM(fi)
9̌(sh)Hr(ji)( c ) Aδ_
AͶ(bio)
Bͬӆ
C(yn)
DʩDO(sh)Ӌ(j)
10̿(yn)?qng)?bo)潛(jng)l(f)J(rn)ɺ( D )(ni)аl(f)fY(ji)(bo)漰ĽY(ji)YpՅf(xi)hsĺͬr(ji)×lsĺͬr(ji){(dio)(ni)M(jn)й̿Y(ji)㡣
A7
B14
C15
D28
E30
}
W(wng)УӖ(xn)
(dng)ǰλã