1.挦F(xin)ⲻ_(A)
A.ڿ쌦grcόHl(f)ߌܿܰl(f)YYQF(xin)
B.ϵy(tng)YQF(xin)
C.ϵy(tng)YQF(xin)
D.F(xin)cF(xin)֮QF(xin)
2.ԇyăɴָ( A )
A.ܶȺ(yu)ˮ B.wĿ
C.ضȺͺˮ D.
3.С(A)ĹעȡΘˮƽodԇRdΘˮƽdO(sh)Ӌֵ
A.0.65%
B.0.75%
C.0.85%
D.0.95%
2019r̎ԇ}졪W(wng)Уn | ||
ԇ} | 2019r̎ԇ} | ھ} |
W(wng)Уn |
2019r̎v+ԇ}+I(y)A(ch)}A(y)y+v} |
ھԇ |
4.ϳɲϵĹܺܶw{߷N(B)
A.ܡB.ӽܡC.坍ܡD.
5.ᘌLˮĻg(sh)x헲c?(D)
A.ԓg(sh)Y(ji)L@C@C߉@Că(yu)c
B.L蘶ʩ_O(sh)ӋֱO(sh)ӋӲ^(q)䪚صă(yu)Խ
C.Ŀǰ(ni)L@Cƣֱ˴800mmL˴30m
D.[ʽ
6.оҪشĆ}ЈYԴrΣO(sh)Ҏ(gu)ģO(sh)ڡͶY~Լ(C )εȷ
A.r
B.O(sh)λ
C.(jng)Ч
D.ʩg(sh)
7hcСĽij^(q)a(chn)ͬĺ^Ҷtԓ^(q)a(chn)ĵӰ ( B )
A. hԽY(ji)(gu)a(chn)
B. hԽY(ji)(gu)a(chn)
C. СĽԽY(ji)(gu)a(chn)
D.hԽY(ji)(gu)a(chn)С
8P(gun)ڶwO(sh)Ø(gu)ľԒe` ( D )
A. w_щw
B. w׃
C. wĿ
D. ɵֿڵػɵƉ
9ܽY(ji)(gu)]䉦ȕr,T1cˮƽԵFeк׃?( A )
A.T1,Fe B.T1,Fe C.T1,Fe D.T1,Fe
10ӋˮƽÿкηN? ( C )
A.40ϵĸߌӽ B.T1L(T1>4s)ĸߌӽ
C. ֱ|(zh)ȷֲĶӽ
D. ƽ|(zh)^ƫĵĶߌӽ