11 cԽY(ji)(gu)(넂ԽY(ji)(gu))P(gun)ĵػ׃( B)?
(A)AбcֲAб; (B)cֲAб;
(C)cAб; (D)cֲAб;
12.ƫ܉A(ch)ĵػdlPmax1.2fɵõĽY(ji)Փǣ(C )?
(A)ƫĺdA(ch)ĵػd20%;
(B)(dng)e=b/30r(sh)(yng)]ƫʹػd͵Ӱ;
(C)(dng)e=b/6r(sh)(yng)ƻ^δƫĕr(sh)ĵػd60%
(D)b/30
13.йɷ˾ؔ(ci)a(chn)Ù(qun)w( B )
A. B.ȫwɖ|C.(hu) D.O(jin)(hu)
14.O(sh)|(zh)?xing)lҎ(gu)O(sh)|(zh)ؓ(f)؟(z)Ćλ( C)?
ʩλ ڱO(jin)λ O(sh)Ӌ(j)λ
ܿλ ݽO(sh)λ
A٢; B٢ڢ; C٢ڢۢܢ; D٢ڢ;
15.O(sh)̿O(sh)Ӌ(j)λԽY|(zh)ȼSɵķДO(sh)̿졢O(sh)Ӌ(j)΄(w)(yng)؟(z)ֹͣ`О̎ԺͬsĿM(fi)O(sh)Ӌ(j)M(fi)(C )P`õԛ]?
A1; B2; C12; D2;
16.ڬF(xin)жƶУӡ( A )a(chn)ƷN֧
A.Įa(chn)ƷN֧
B.Įa(chn)ƷM(fi)СM(fi)á֧ĶNC.Ĺ̶Ya(chn)ͶY֧
D.϶
17ЙC(j)|(zh)ɷ֞飺(C )
(A) ЙC(j)|(zh)̿;(B)ЙC(j)|(zh)̿|(zh)̿;
(C)oC(j)ЙC(j)|(zh)̿|(zh)̿;(D)ЙC(j)|(zh)oC(j)|(zh)
18(sh)HҶcкηNP(gun)? ( B )
A. B.xеľx C.^(q) D.дС
19(j)ػA(ch)Ҏ(gu)]ĵػdO(sh)Ӌ(j)ֵՓʽfV=Mbrb+Mdr0d+McCKf_(C )?
(A)oՓ|(zh)Σ׳ߴߵػd;
(B)O(sh)Ӌ(j)мӴA(ch)ߵػd;
(C)ɰеˮλr(sh)ػd;
(D)ʽָ(bio)ĜycҪԟoP(gun);
20Ӌ(j)ˮƽÿкηN? ( C )
A.40ϵĸߌӽ B.T1L(T1>4s)ĸߌӽ
C. ֱ|(zh)ȷֲĶӽ
D. ƽ|(zh)^ƫĵĶߌӽ