11.䓽ѿpҪ( )
A.һҪF(xin)ѿp
B.ѿpȲ0.1mm
C.ѿpȲ0.2mm
D.ѿpSֵ(j)ʹҪ_
𰸣D
12.(dng)xýгodݼܵ䓲̖(ho)r(sh)Ă(g)Dz_?
AxQ235
Bx16Mn
C䓲ı횾г؛_gԵĺϸC
D䓲ı횾п(qing)L(zhng)ʡ(qing)ȵĺϸC
𰸣C
13.É(sh)ػr(sh)вʹõ( )
A.
B.
C.
D.ʯ
𰸣B
14.Y(ji)(gu)O(sh)Ӌ(j)Ҏ(gu)ᳫºηN䓽҇(gu)䓽Y(ji)(gu)(do)䓽?
AHPB235(j)䓽
BHRRB335(j)䓽
CHRB400(j)䓽
DRRB400(j)䓽
𰸣C
15.һ12m16mƽ߅4mg಼䓽w(]A(y)(yng))ȡ^ĘnjӃ(swY(ji)(gu)߶)иNY(ji)(gu)ķNm?
A.12m4mgһ2mg4Bm(x)
B.16m硢4mgһ2mg3Bm(x)
C.L(zhng)O(sh)ɸ1mgࡢ12mĴ
D.34ľ
𰸣D
16.(du)ڴҺӵĵػ( )ʩȫػҺݵĴʩ
A.ØA(ch)뷀(wn)
B.÷ҺQȫҺ
C.üܷӹҺ½
D.ӏ(qing)A(ch)wԺ̈́
𰸣D
17.(j)^ͷ˲( ){(dio)ʽ
A.L(fng)C(j)PܼL(fng)
B.ȫL(fng)
C.ȫ՚
D.L(fng)C(j)P
𰸣A
18.P(gun)A(y)(yng)(gu)ڳʹúd֮ǰʩA(y)(yng)Ĕһ(xing)_?( )
A.^(q)ʩӉ(yng)
B.܉^(q)ʩ(yng)
C.^(q)ʩ(yng)
D.܉^(q)ʩӉ(yng)
𰸣A
19.䓽Y(ji)(gu)ıL(zhng)ݗ_(d)ٶȕr(sh)(yng)ȡЧĸʩ( )?
A.100
B.150
C.200
D.600
𰸣B
20.ڹʹȻďNO(sh)( )
A.ȻͨL(fng)
B.g²L(fng)
C.ذ
D.¹L(fng)O(sh)ʩ
𰸣D