11.÷һ?( D)
A.p˽С܇Ĕ(sh)
B.O(sh)ˮwϻNһŘ
C.ṩ߶Ⱦ^
D.Դccľx
12.P(gun)Ҏ(gu)õطܽ熖}кe`?(C )
A.Ȼֽ羀
B.·ľ
C.·t
D.põصĽ̎
13.ˆTܼĻһcҎ(gu)Ҫ?( A)
A.ؑكֱRӳе·
B.سе·LٲСڻL1/4
C.Ѓɂϲͬͨе·(ͨ·Bӵ)
D.ػҪڣֱҪɵĽ
14.ԇзg˜һDzʴ_?(A )
A.סլÿһܫ@ö՝M3h
B.ÿа딵(sh)ϵľܫ@ö՝M1h
C.˹ԢҪґܫ@ö՝M3h
D.t(y)Ժа딵(sh)ϵIJܫ@ö՝M3h
15.Ҫ]סլļͽMȻͨLLҵҪкν^(q)?( B)
A.^(q)
B.^(q)
C.^(q)
D.^(q)
16.ijWԺMһͻȼ6ӽ̹סլɽO(sh)вɹⴰԇcؕյ߅ľxٞ?(B )
A.2m
B.3m
C.4m
D.6m
17.c·tBӕrȡηNctB?(D )
A.׃t
B.Uõط
C.׃tõصؽ
D.O(sh)ͨ·
18.һռ؞2000O3ӽÿӽe800Oԇԓ헽õصĽݷeʞһ?( B)
A.0.8
B.1.2
C.1.6
D.2.4
19.ԇ(C )fDz_?
A.Ҷȱʾ漰ݽܵƉĵij̶
B.O(sh)c789ȵҶȵĵ^(q)
C.Y(ji)(gu)O(sh)ӋԵ(j)
D.ҶȺ͵ͬһ
20.صġͨһƽă(ni)һl?(A )
A.ˮͨͨ·ͨƽ
B.ˮͨůͨúͨ·
C.ͨůͨˮͨ·
D.ͨͨˮͨƽ