11 P(gun)ڸ(jng)(zhng)ՄеՄг,f(shu)_( B )
A.ՄСM(yng)(dng)(du)푑(yng)ļM(jn)u(png),c(sh)|(zh)푑(yng)ՄļĹ(yng)M(jn)Մ;δ(sh)|(zh)푑(yng)ՄļĹ(yng)̿Ԍ(du)푑(yng)ļM(jn),_(d)(sh)|(zh)푑(yng)ՄļҪ,cՄСMM(jn)Մ.
B.(du)ՄļM(jn)гĵă(ni)ݿӰ푑(yng)ļƵ,ُ(gu)ُ(gu)C(j)(gu)ՄСM(yng)(dng)ύ״푑(yng)ļֹ֮3(g)ǰ,ԕ(sh)ʽ֪ͨнՄļĹ(yng),3(g)յ,(yng)(dng)ύ״푑(yng)ļֹ֮.
C.ՄСMԃr(ji)СMڌ(du)푑(yng)ļЧԺ푑(yng)̶M(jn)Ќr(sh),Ҫ(yng)̌(du)푑(yng)ļcُ(gu)еķ(w)Ҫă(ni)ݵҪijf(shu)߸;
D.鹝(ji)ʡُ(gu)r(sh)gM(fi),ՄСMɆTɷքecһ(yng)M(jn)Մ
12 ijP(gun)MԸ(jng)(zhng)Մзʽُ(gu)һbzy(c)O(sh),P(gun)ڹ(yng)ύCҪ,f(shu)_( C )
A.Ҫ(yng)ύCĔ(sh)~ó^(gu)ُ(gu)(xing)ĿA(y)1%.
B.(yng)ύCֻyб߬F(xin)ʽύ.
C.Ҫ(yng)ύ푑(yng)ļֹr(sh)g֮ǰύC.
D.(yng)̞(lin)w,ֻ(lin)wеĠ^(yng)ύC.
13 P(gun)Ո(qng)И(bio)f(shu),_( ).
A.(jng)(zhng)И(bio)
B.И(bio)ɱ(hu)YԴM(fi)(du)^
C.И(bio)(du)^С
D.m漰(gu)Ұȫo(w)_(ki)И(bio)(xing)Ŀ
:B
:
Ո(qng)И(bio)И(bio)r(sh)gɱM(fi)ú(hu)YԴ(du)^,B(xing)e(cu)`.
14 Ќ(du)҇(gu)ُ(gu)ʽ`().
A.й_(ki)И(bio)Ո(qng)И(bio)(jng)(zhng)ՄСԃr(ji)ُ(gu)һ(li)Դُ(gu)ȷʽ
B.ضĺx͌Tij
C.mYضTIJُ(gu)О
D.mһYwIJُ(gu)О
:D
15 x(xing),ُ(gu)c(din)( D )
A.ُ(gu)Y(li)ԴĹ.
B.ُ(gu)ď(qing)
C.ُ(gu)
D.ُ(gu)ĠI(yng)
16 O(sh)Ӌ(j)(xing)ĿԔ(x)u(png)ļg(sh)ؙ(qun)һ㲻( ).
A.15%
B.25%
C.75%
D.85%
:D
:
̷O(sh)Ӌ(j)И(bio)Ͷ(bio)kҎ(gu),И(bio)˲ðٷƾCu(png)O(sh)Ӌ(j)(xing)Ŀu(png)(bio)k,g(sh)֙(qun)һ㲻85%,̄(w)֙(qun)һ㲻15%.
17 A(ch)O(sh)ʩ(sh)S(jng)I(yng)ڻA(ch)O(sh)ʩ( ).
A.
B.(sh)|(zh)
C.ͨ
D.ȻŔ
:D
:
A(ch)O(sh)ʩ(sh)S(jng)I(yng)ڻA(ch)O(sh)ʩȻŔ.A(ch)O(sh)ʩһйͨйI(y)·F·աܵͨšO(sh)ʩ.A(ch)O(sh)ʩ(xing)ĿS(jng)I(yng)L(zhng)_(d)ʮ,S(jng)I(yng)ރ(ni){(dio)a(chn)Ʒ(w)r(ji)DZȻ.A(ch)O(sh)ʩ(xing)Ŀăr(ji){(dio)dz(f)s,һA(ch)O(sh)ʩȻŔ,И(bio)Aƶăr(ji){(dio)(du)(xing)ĿɹҪ.
18 x(xing),ُ(gu)ԭt( B )
A._(ki)
B.
C.
D.\(chng)(sh)
19 C(j)늮a(chn)Ʒ(gu)HИ(bio)(xing)ĿИ(bio)摪(yng)( )l(f).
A.Ї(gu)(jng)(j)(do)(bo)
B.Ї(gu)ͨ(bo)
C.Ї(gu)O(sh)(bo)
D.Ї(gu)?qng)?bo)
:D
:
C(j)늮a(chn)Ʒ(gu)HИ(bio)(xing)ĿИ(bio)摪(yng)ڡЇ(gu)?qng)?bo)ϰl(f).
20 И(bio)Ͷ(bio)(sh)ʩlҎ(gu),Ͷ(bio)C~ó^(gu)И(bio)(xing)Ŀr(ji)( ).
A.2%
B.3%
C.4%
D.5%
:A