A.A(y)ԑۿ
B.A(y)ԑĻʧ
C.ۿ
D.
οSB
Sñ(zhn)(qing)ͻI(y)I(y)sͨA(y)ԑĻʧr(sh)ʾTxB.P142
(j)ĹPָꡣ
12.иУֱӰݞo?
A.ƽÿ
B.A(y)?BR>C.A(y)ÿС
D.ǰ
οSC
Sմ=1/2A(y)ÿ*A(y)Ķ?ƽÿ*ǰڣxABDӰݞՇCӰݞՅĴC.
鱣մļ㹫ʹ(ji)ԓʽ˽÷֑M?BR>
13.ijI(y)Ҫʽ60ԪԟҪ20%ҵҪĴ?Ԫ
A.75
B.72
C.60
D.50
οSA
S=*1-ʣԣҪĴ=60/1-20%=75ԪxA_S
ӛڳеĂ}(cng)?BR>
14.иУʧۿ۵Ļʷ仯?
A.ۿ
B.ۿ
C.ñ(zhn)
D.
οSD
Sʧۿ۵Ļ=ۿ/1-ۿʣ*360/-ۿڣ耼ۿʡۿՊʧĻñɥʧĻɱP(gun)ںɥʧĻɹP(dng)T(yng)xD
ɥʧֽۿۻɱĹ{
15.ij˾(qun)y(tng)ԍ5U4ԍ100Ԫr(sh)ʽ8%ԍ100Ԫr(sh)ʽ10%Rr(sh)ṹֲܶ Ԫ
A.200
B.225
C.385
D.400
οSB
Sռʲ\=4/5+4=4/9ܶ=100/4/9=225ԪT(yng)xB
H܇e{һӍȡ
16.µMMPб_
A.I(y)r(sh)?BR>B.ԽСI(y)ֵԽ
C.ԽI(y)ֵԽ
D.I(y)ֵI(y)r(sh)ṹ?
οSD
Sһϵм֮?dng)nMMҪ⣬֮һǣòܗUȨUP(du)ߡΪ˵ծ˾IJܸᱻ(qun)ʽ(sh)ԣ˾ļֵr(sh)ṹP(gun)̲P228
һӍxⲿ֪ʶMMr(sh)ṹeȷ𰸡ԸųѡȻֻeȼÇBCôAҲȻ_T_D
17.I(y)SһI(yng)븺ͳɱ?
A.?BR>B.㊚
C.sԹ̶
D.Թ̶
οSC
SsԹ̶I(y)I(yng)I(y)SһI(y)븺ͳ?BR>vv̶ɱĶԽĽϤ(yng)DzFP205
18.ֱͶߵҔɹ²Ž䡱ֵķԭ
A.r(sh)ȫԭ
B.ԭ
C.ԭ
D.Ͷԭ
οSA
Sݽ239(y)r(sh)ȫԭĹ涨Ҕɹ½䣬ֻHֱͶߵ?BR>Ƕԭ\
19.ij˾I(yng)I(y)dgչĿǰCɳFΣA(y)еI(yng)ܹδ10ȶҪ˾ϣ˾ӯϡΪԓĹ?
A.ʣ
B.̶
C.̶֧
D.
οSC
S̶֧ߵZ֮һ˾ӯܵϣ(du)֣ӯٷ֣ӯֵĹ?BR>ӛ̇ߵc(din)μ247(y)
20.봫ͳԤ㷽xԏA(y)?
A.A(y)?BR>B.o
C.r(sh)A
D.
οSA
S봫r(du)㷽xA(y)㷽ƵԤȸߡʱǿԺãv呻c(din)ҪȱA(y)?BR>ӛԤȱǶԽ֪R(sh)Ŀe?70(y)ӍȲ
21.ȫA(y)ϵķ࣬ԤУn?
A.A(y)
B.A(y)
C.ֱӲA(y)
D.ֱ˹A(y)
οSB
SA(y)A(y)ԤA(y)A(y)ʲn
ӛnķΧnj(du)̂}(cng)ـ죬μ260(y)ӍȲ
22.취£̶õnI?
A.۸Ͳ
B.ķѲЧʲ
C.Чʲ
D.ķѲ
οSD
Sԏ̶õ취£ѹ̶ÅM(fi)}(cng)?BR>˹̶õIJ̲P330.ǶԽ~ֱӿˣ]Ӎx(yng)ʧ
23.ʹCԭиУS
A.
B.
C.
D.Ƴ
οSA
SSָۺʹøòƷйصijS
˵άɱĺҪԽϤ÷(yng)ò⣬^?36(y)
24.ָУֵС볥ծСͬ(dng)
A.(qun)
B.ʲ
C.fϢ
D.Ϣ
οSC
SfϢ=Ϣǰܶ/Ϣָ֧Խf(shu)I(y)Խ(qing)
һۺԣӍȽϴ
25.ijI(y)20072008I(yng)I(y)ֱ7%8%ʲD(zhun)ʷֱ21.5ʲͬ2007x2008ľʲr(sh)?
A.
B.
C.
D._
οSB
Sʲ=I(yng)I(y)*ʲD(zhun)*(qun)ʲʲȨ䡣2007ľʲ?7%*2*(qun)=14%*(qun)2008ľʲ=8%*1.5*(qun)=12%*(qun)2008ľʲˡ
Ƕh(yun)ŰϵĹʽĿˣۺԽ(qing)һӍȡ