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发表于 2019-9-13 23:46:11 | 显示全部楼层 |阅读模式
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A??????? B???????? C????????? D?????? 3?????????????? A ??

A????????????B??????? C?????????????? D??????? 4????????????( B )?

A????? B?????C?????D????? 5????????????????? B ??

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A??????? B??????? C?????D????? 9?????????????????????( B )?

A?????? B???????? C?????????? D?????????? 10???????????????????????????? A ???????

A??????????? B?????????????? C??????????? D??????????? ???????????2???20??

1???????????????????( ABE )?

A????? B???????? C????? D????? E?????????????? 2??????????????????????( CD )?

A????????B???????? C???????????????????? D??????????????? E??????????? 3?????????????????????????????( CDE )?

A?????????? B??????????? C?????????? D??????? E????????? 4????????????????????( ACDE )?

A?????B????? C????? D????? E??????? 5??????????????????( ACDE )?

A?????B??????? C??????D????????? E?????? 6??????????????( BC )?

A??????? B???????C???????D???????E??????? 7??????( AD )?

A?????? B?????? C?????????D?????? E???????? 8???????????????( ABCDE )

A????????? B?????????C????????? D???????????E??????????? 9????????????????????( BCDE )?

A???????????B??????? C??????????????D???????????E????????? 10????????????????( AC )?

A?????????????? B?????????????? C????????????D??????????????? E????????? ?????????1???10??

1?????????????????????????????? ?? 2??????????????????????????????? 3?????????????????????????????????????

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????????????????? 20625 ?????????????????2887.5 ?????????39187.5?????????5486.25 ?????????63937.5?????????8951.25 ???? 3000???? 420 ???? 8900 ???? 1246

?????? 135650 ??????? 18991

2??????A?B?????????????29000??????A??500??B??300????????????????20?????15??????1??????????????A?B?????????????2????????????? ?????A?? 20500=10000??? ???=29000?10000+4500?=2

B?? 15300=4500???

A?????????=100002=20000??? B?????????=45002=9000??? ????????A???????? 20000

??????B???????? 9000 ????? 29000

3??????????????????????????????????????36400???????33600??????????110000??????????10000????????80000????????????8000??????????12000?????????????10600?????????600?????????7000?????????3000????????????????????????????????????????????0.345????????????3.46????????????????????? ?1???????

????????=33600(7000+3000)=3.36

???????????=3.367000=23520??? ???????????=3.363000=10080??? ?????????? 23520

???? 10080

?????????? 33600

????????=36400(80000+8000+12000)=0.364 ?????????=0.36480000=29120??? ?????????=0.3648000=2912????????????=0.36412000=4368??? ?????????? 29120

???????? 2912 ????4368 ?????????? 36400 ?2??????

?????????????=3360010600=3.17 ???????=6003.17=1902??? ????????=36400110000=0.331???????=100000.331=3310??? ?????????? 1902?????????? 3310

?????????? 1902?????????? 3310

??????????=33600+3310-1902=35008??? ??????????=36400+1902-3310=34992??? ?????????????=35008(10600-600)=3.50????????=34992(110000-10000)=0.34992 ??????????=800000.34992=27993.6???

??????????=80000.34992+3.50087000=27304.96??? ??????????=120000.34992+3.50083000=14701.44??? ?????????? 27993.6

???????? 27304.96 ???? 14701.44

?????????? 34992

?? 35008

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?????0.34580000=27600??? ?????0.3458000=2760??? ?????0.34512000=4140??? ?????0.34510000=3450??? ???????=27600+2760+4140+3450=37950??? ?????????? 27600

???????? 2760 ???? 4140

???????? 3450?????????? 37950 ?????????????

?????3.46600=2076????????3.467000=24220??? ?????3.463000=10380??????????=2076+24220+10380=36676????????????? 2076

???? 24220

???????? 10380?????????? 36676

????????=33600+3450=37050??????37050-36676=374??? ????????=36400+2076=38476??????38476-37950=526??? ?????? 900

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A. ?????????? B. ????????????C. ??????????????? D. ?????????? 6?????????????????????????????????????????????????????? A ? A. ?????B. ??????? C. ???????????D. ??????????? 7????????? D ???????????????

A. ???????? B. ?????????? C. ?????????? D. ?????????????????????????

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A. ???? B. ???? C. ???? D. ?????? E. ?????? 2????????????????????????? ACDE ?

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A. ???????? B. ????????? C. ?????????????? D. ????????????? 4?????????????????????????AB?

A. ????????? B. ????????? C. ????????????? D. ????????????? 5?????????????????????????????????? ABCD?

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A. ?50%?????????? B. ??????????C. ???????? D. ??????? E. ???????? 7??????????????????????????? BCD ??? A. ?????????B. ?????????

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1????????????????????????????25000?????????5000??????10000??????10000????????????????

?1? ????????????2700?? ?2? ????????4000??

?3? ??????????14%?????? ?4? ??????1500?? ?5? ?????????2000?? ?6? ?????1000?? ?7? ???????800??

?8? ????????????????1400??

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1. ?????B ????????????????????????????????????????????????????9????????????4000?????????????16000???????3000??????4500????????350???????150?? ???

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?1?B??????????=?4000+16000?/?350+150?=40??? B???????????=15040=6000??? B??????????=35040=14000??? B????????=14000+3000+4500=21500??? B?????????=21500/350=61.43??? ?2?B???????????? B???????

2. ??????????????????????????????????????????????130????????210????????160???9???????????????????100???????200???????38??????9????????1538??9????????1462????????800?? ???

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9?????????=26+136+38=200???

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3. ?????????????????????????????8???????????5000????????3000??????1000?????????300???????4?? ???

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??????=2340+1800+2700=6840??? ?3??????????????? ?????=1613=208??? ?????=1610=160??? ????=1615=240???

????? =208+160+240=608???

5. ?????8??????????????????????????????????????????????????????????????????????????????

7 8 8 8 8

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?1?????????=?3541+5459?/?1700+1300?=3 ?????????=17003=5100???

??????????=13003=3900???

????????=?2987+4213?/?3500+2500?=1.2??/??? ????????=35001.2=4200??? ?????????=25001.2=3000???

???????=?3376+5024?/?3500+2500?=1.4??/??? ????????=35001.4=4900??? ?????????=25001.4=3500??? ?2???????=5100+4200+4900=14200??? ???????=3900+3000+3500=10400??? ?3??????????????? ????????

????????????????????5

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