һ
̰һԪһη̡Ԫһη̽MԪһη̽MͷʽÿN̶ضĽⷨһԪһη̳Ҏ(gu)Ľⷨδ֪Ƶʽ߅(sh)Ƶʽ߅@dzҎ(gu)ⷨwМyԇкܶǿÔ(sh)˼}ġԪһη̽MĽⷨǴ뷨ԪМyԇеĶԪһη̽MҪwʽҪD(zhun)һԪηⷨôų˼
1ijڄӲTü҃ɂ_չr(nng)匍˲ӖɽҾ5λÿſ10ˣҽÿſ9ɽҮ¹ekԓӖ27ΣÿӖo̓ϯӖ1290˴Ү¹ek˶ٴ@Ӗ?( )
A.8 B.10
C.12 D.15
[]D
[]@}ЃɽҾ5λtҿ105=50ҽҿ95=45Ӗ27Ӌ1290˴ÿӖo̓ϯtҽӖΔ(sh)؞ż(sh)tӖ˔(sh)β(sh)5҄tֻӖΔ(sh)攵(sh)ĂxֻD헞攵(sh)
̆}̆}Ͳ̽M̵ĽⷨͨǴų˼(sh)˼еżԺβ(sh)̽Mַ֞δ֪(sh)wɷNδ֪(sh)ҪԪD(zhun)ɲò̵ĽⷨwҪx0ȥϵ(sh)(f)sδ֪헡
2ij܇Sa(chn)N܇ͮa(chn)3cͮa(chn)6֮͵ڼͮa(chn)4ͮa(chn)cͮa(chn)2֮͵ڱͮa(chn)7tͮa(chn)֮Ȟ飺( )?
A. 543 B. 432
C. 421 D. 321
[]D
[](sh)˼3+6=4ףüב(yng)3ı(sh)^xֻD헝M
3Ќ99ObMɷNbbÿb12OСbÿb5OʮӄbꡣɷNbق?( )
A.3 B.4
C.7 D.13
[]D
[]żԺβ(sh)O(sh)xСyt12x+5y=99x=7y=3(ȥ)x=2y=15y-x=13
4ijͯˇg(sh)Ӗ5ٽ̎6̎ӖČеٌWTWT76˷քeƽطֽoώI(lng)܉꣬ÿλώČW(sh)|(zh)(sh)ڌW˔(sh)pӖֻ4ٽ̎3̎ÿ̎ČW(sh)׃ôĿǰӖ߀ʣWT?( )
A.36 B.37
C.39 D.41
[]D
[]O(sh)ÿλώxώyt5x+6y=76ͨ^żжxż(sh)|(zh)(sh)x=2y=11߀ʣWT42+311=41()
5IҡN؛371軨M3.15Ԫ;4101軨M4.20ԪҡIһ軨MX( )?
A.1.05Ԫ B.1.40Ԫ
C.1.85Ԫ D.2.10Ԫ
[]A
[]ⷨһ@}漰ʽĺ׃ΡO(sh)ҡN؛ĆrքeABCt(j)}
3A+7B+C=3.15
4A+10B+C=4.20
һʽ3õ 9A+21B+3C=33.15
ڶʽ2õ 8A+20B+2C=24.20
σʽpɵ A+B+C=1.05Ԫ
ⷨ(j)}
3A+7B+C=3.15
4A+10B+C=4.20
ϵ(sh)(f)sBxֵ0D(zhun)ɶԪһη̽M֮A=1.05C=0tA+B+C=1.05Ԫ
@Ƿ̆}ĶN}(yng)}Ì(yng)ķ
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