51̵ֵĿ
A߲Ʒļֵ
BͲƷij
C߲ƷĹ
DͲƷ߲Ʒֵ
52˷Ӗ(xn)ļƷf
A˹
BֱӹT
C
D˹+
53ijĿuʾ(zhn)12%÷ľֵԪ
A27.87
B72.45
C34.20
D35.52
54иУ
Aֲ
B?nbsp;
Cɶ(qun)?nbsp;
D(yng)ֵ(x)
55ʩеr(sh)ѣڣ
AbՄ
B豸߹?nbsp;
CT
DA(y)ī
56ijĿT600Ԫ豸߹?00ԪbT180Ԫ̽210ԪA(y)90ԪĿ2ݏ?O(png)Ͷ40%۸3%2ǼA(y)Ԫ
A3949
B3849
C458
D436
57ͶTۉγԔľţ䓱Ӿb?br />Ar
Bͬ
Cü
D
58衫ӔӪƽַʽָĿ˾ʽgĿɺҎ(gu)(qun)оI(yng)ʩƽ
ABLT
BBTO
CBOOT
DROO
59GDPĺʽTʾ
AC+I+G+(MX)=C+S+T
BG+C+I+X=C+S+T+M
CC+I+G+X=C+S+T+M
DC+I+G+(XM)=C+S+T
60EӰeNJWõĻʱΪM
Aܹ
B?br />Cǰ
Dǰ?br />