11.P䓲ܵuhһ_
A.cȱֵԽСԽa(chn)Ԕ
B.ǺӳؽY(ji)(gu)䓲IJҪĺϸC
C.䓲ĵĺҪȡQ̼
D.䓲ě_gԲܹض׃Ӱ
𰸣B
12.סլÑMжbޣ20mmˮɰ{25mmrurӵĺdsռҎ(gu)Ҏ(gu)Ędİٷ֮?
A.20%
B.30%
C.40%
D.50%
𰸣C
13.pСضȑΌӏSg֧Α( )
A.sp^(q)ε
B.sp^(q)εR
C.sp^(q)εҶ
D.̎ͬrO
𰸣B
14.ߏ˨Wܺ͑÷һNf_( )?
A.ߏ˨ܼܼdȵ
B.Љߏ˨һ㑪ڵ^(q)䓽Y(ji)(gu)
C.Ħߏ˨һ㑪ڷǵ^(q)䓽Y(ji)(gu)
D.Ħߏ˨Ħf
𰸣D
15.플g(ji)c̎߶Ȳrv䓽픲(ji)c(ni)ˮƽv䓽Ŀȕrv䓽^̶ΏǰQֱͶӰLȲС0.5la,ۺˮƽͶӰLȲС( )
A. 5d
B.10d
C. 12d
D. 15d
𰸣C
16.҇OӋҎ(gu)OӋĽܵڱ^(q)OҶȵĶӰ푕r( )
A.һ㲻ܓpĻԿ^m(x)ʹ
B.ܓp(jng)һԿ^m(x)ʹ
C.°l(f)ΣćƉ
D.µ
𰸣A
17.ٽOdȡQеһ?
A.Ŀ
B.Ŀ
C.䓽Ŀȼ
D.䓽Ŀȼ
𰸣B
18.ķN䓽@( )?
A.܈䓽䓽
B.̼䓽z
C.䓽g
D.̎䓽
𰸣A
19.S( )
A. ģ(sh)Uģ(sh)30M(sh)
B. Uģ(sh)60M(sh)
C. Uģ(sh)120M(sh)
𰸣B
20.PڷֹppwY(ji)(gu)w_ѵļgʩ헲_
A.Ӵ플ӬF(xin)ǰǷֹpp플ӉwѿpЧʩ
B.O픱ӿɷֹpp플Ӊѿp
C.AȦȿɷֹppݵӉwѿp
D.ŮO؞ͨȫߵĘ(gu)c픲䓽ɷֹpp플Ӊwѿp
𰸣A