46(yng)ѭԭ
(qun)ơ¡䌍(sh)ơ֙ȡġ(sh)̴
47ۺӳI(y)Ҫָ
A. R
B. ʲ
C. ʲD(zhun)
D. ʲ
48й˾IJĿ
A.
B.ÿӯ
C.ÿɷֺ
D.ɶƸ
49У涨ǰһۿۡ[?/100/30ĺ
A30ԍ2%ۿ
B1030ԍ2%ۿ
C10ԍ20%ۿ
D10ԍ2%ۿP10ȫ?
50I(y)ĿEƼDУđظxص飨
A. ǷT
B. Ƿԍλ](mi)I(y)
C. ǷTλò
D. ǷEԑ
51ʩI(y)ͻеVb̵ģ
AʩxBxCӷxDʩеʹ÷
52Ŀԏ滮ĿΣƹ̿ԲʱͶʹıƷ? )
Aָ BʽD(zhun)ʷ
C?nbsp;DۺָͶʹ?
53{ԟʩӖ(xn)һ( )
Aҹʩ B
Cr(sh)ʩ DD(zhun)ƷѪ
54ijy̵ֱӷ?200ԪֱӹT1000Ԫƽ˷ѿ֧3Ԫȫ꽨ֵ?00ԪֱӹTռ۵\80%˷ Ԫ
A60 B12.5 C41.67 D61.34
55ʹcĿⱣӦ루 һС
Aݚ Bֳ Cݶ D˹
56D(zhun)ָ
A.D(zhun)ĵԷ
B.ϵy(tng)D(zhun)ĵԷ
C.ĸD(zhun)ķ
D.ĸD(zhun)ķ֧D(zhun)Ŀc
57ijֳQ(mo)500LĻÿһѭУbϡ衢ДЃʱֱ?311еϵ0.9](mi)е_(ti) m3
A43.2 B270 C40 D36
58ĿͿоFμͶҪr(sh)ʹõ
AͶʹָ BA(y)?nbsp;Cʩ Dָ
59ijĿͶ5500ԪݏSͶʹñ?0%ԜO(png)ͶR(sh)ƽ۸?%ĿԜǼA(y)(yng)( )Ԫ
A338.25 B110.00 C269.28 D225.5
60嵥??УֲM(fi)ʩĉõӋ(j)r(ji)?nbsp;
Aϵ۷ Bۺϵ۷ Cϲ Dȫõ۷