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【多选题】
下列关于财政收入的说法，正确的有（）。A.
按取得收入的稳定程度分类，财政收入分为经常性收入和临时性收入
B.
促进技术进步，提高经济效益，是增加财政收入的有效途径
C.
来自农业的税收是我国财政收入的主要来源
D.
财政收入是按历史价格计算的货币收入
E.
全国财政收入占国内生产总值比重过高，不利于调动企业和居民的积极性
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【简答题】二次函数y=2x 2 ﹣4x﹣1的最小值是（ ）．
【单选题】Among those which is not deemed sales? ( )
A.
the manufacturer transfers self-produced goods from its head office to the branch for sales and both are in different county
B.
the manufacturer uses self-produced goods for dividend distribution
C.
the manufacturer uses self-produced goods for VAT-free items
D.
the manufacturer uses self-produced goods for continuous production
【单选题】Among those which is taxable modern service? ( )
A.
Software development
B.
Financial services
C.
Home rental services
D.
Laundry services
【多选题】Among those which is deemed sales? ( )
A.
The manufacturer transfers purchased goods from its head office to the branch for sales and both head office and branch are in different counties.
B.
the manufacturer uses processed goods on consignment for social intercourse
C.
the manufacturer uses self-produced goods for its canteen
D.
the manufacturer uses purchased goods for continuous production
【判断题】狭义O2O，指的是消费者通过线上平台在线购买并支付/预定某类商品/服务，并线下体验/消费完成交易；消费者在线下体验后通过扫描二维码/移动终端等方式在线上平台购买并支付/预定某类服务/商品
A.
正确
B.
错误
【简答题】（1）函数y=（a 2 -3a+3）a x 是指数函数，求a的值。 （2）指出下列函数哪些是指数函数？ ①y=4 x ；②y=x 4 ；③y=-4 x ；④y=（-4） x ；⑤y=（2a-1） x （a＞ 且a≠1）；⑥y=4 -x 。
【简答题】下列函数①y=5x-5；②y=3x 2 -1；③y=4x 3 -3x 2 ；④y=2x 2 -2x+1；⑤ y= 1 x 2 ．其中是二次函数的是 ______．
【单选题】Among those which is input VAT deductible? ( )
A.
purchased goods (except tax-free agricultural goods) without VAT special invoice
B.
purchased goods with VAT ordinary invoice
C.
purchased goods with VAT special invoice
D.
purchased goods without no invoice
【简答题】下列函数中，为奇函数的是（ ） (A)y=㏒3x (B)y=4x (C)y=3x2 (D)y=3sinx
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