11ʹõµO(sh)ӋҎ(gu)һe`( )
A.Ȳ(yng)С0.9m
B.µɂ(c)(yng)O(sh)
C.¶Ȳ(yng)1/8
D.Ϣƽ_ˮƽLȲ(yng)С1.5m
:A
12.һ헲ڹгõĴֱͨ(lin)ϵֶ( )
A.;
B.Ԅӷ
C.;
D.
:D
13.ո۵xַҪ]ոc֮gľx,Ҏ(gu)潻ͨոcеxһ()km
A.10-15 ;
B.15-50 ;
C.10-30;
D.20-40
:C
14.һ90܇λĵ܇䰲ȫڵO(sh)Ҫ(yng)(dng)( )
A.ˆTں܇ڸ2
B.ˆTں܇ڸ1
C.ˆTڲ1܇ڲ2
D.ˆTڲ2܇ڲ1(p܇)
:D
15.ȻͨL(fng)ďNͨL(fng)_eС0.6m2cԓgذe֮ȲС( )
A.1/7;
B.1/10
C.1/12;
D.1/20
:B
16.Pҵ҃(ni)߲(yng)( )m
A.2.1 ;
B.2.2
C.2.4 ;
D.2.7
:C
17.ס^(q)˔(sh)^( )ҽӔ(sh)^( )ӵľס^(q)ɲO(sh)oˮ
A.500;2
B.500;3
C.600;2
D.600;3
:A
18.ڂy(tng)L(fng)ò͵ćҚvʷĻ()
A.ƽbn(zhn)hV;
B.nǡ(zhn)h
C.ƽbnǡ(zhn)h;
D.(zhn)h
:C
19.҇F(xin)еkO(sh)ݑ(yng)ăɂl?,6ϑ(yng)O(sh);,5ϑ(yng)O(sh);,߶ȳ^75mkݑ(yng)օ^(q)ʹ;߶ȳ^100mkݑ(yng)օ^(q)ʹ
A.
B.
C.
D.
:C
20.^Ҳ˲( )ӻ( )ϡ
A.4;4
B.5;5
C.6;6
D.3;3
:A