11.(qing)̎ػr̎(yng)ڽA(ch)(ni)ÿ߅(yng)A(ch)⾉Č˞O(sh)Ӌ(j)̎ȵ_____B___С3m
A.1/4~3/4 B.1/2~2/3 C.1/5~3/5 D.1/3~1.0
12.҇20o(j)70M(jn)(qing)ʩѸȫƏV(yng)ã҇õN40tõĺN؞( B )
A.5~15t B.10~25t C.15~30t D.20~45t
13.ڏ(qing)ܷ̎ػ(yng)( D )O(sh)|
A.̎ĵO(sh)С500mmĈ(jin)Ӳϵĉ(sh)
B.̎ĵO(sh)С300500mmĈ(jin)Ӳϵĉ(sh)|
c.̎ĵO(sh)С200300mmĈ(jin)Ӳϵĉ(sh)|
D.O(sh)|
14.(qing)͏(qing)ÓQ̎ÿ߅A(ch)⾉Ȟ ( B )
A.O(sh)Ӌ(j)ȵ1/22/3.С3m
B.O(sh)Ӌ(j)ȵ1/21/3С3m
C.1.0m 0.75A(ch)
D.ڻA(ch)O(sh)Ӌ(j)ȷ֮(ni)
15.Щػӹ̷ڏ(f)ϵػӹ? ( B )
a.Ӕ跨 b.Q c.ɰʯ d.A(y) e.(qing)
(A)ab (B)ac (C)ad (D)ac
16.(f)ϵػ(f)wӋ(j)ҪW(xu)(sh) ( B )
(A)(f)ϵػd (B)(f)ϵػď(f)ģ (C)(yng) (D)ԭijd
17.еػ̎еĘЩɢwϘ? ( A )
A.ɰ B. C. D.ʯҘ
18.(f)ϵػ̎УɢwϘ ( D )
A. B.CFG
c.͏(qing)ˮɰʯ D.
19.еػ̎Уڏ(f)ϵػļӹԭ ( D )
A.ۺ B.䓽蘶
C. D.ˮ̽Y(ji)(qing){
20.ĎNԲϘ ( C )
A.ɰʯ B.ʯ c.ʯҘDܘ D.