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P158第四题[技能训练]写出修改稿 P158[扩展学习]第五题,下面是一则病文,请写出格式规范、具有函的语体特征的修改稿。
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举一反三
【简答题】培养基的组成物质中,根据其作用的不同,除水作为溶剂外的其他物质可分为( )、( )、( )、( )四类。
【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
【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
【多选题】Among those which is input VAT deductible? ( )
A.
supply of electricity
B.
supply of water
C.
processing of goods on consignment
D.
supply of natural gas
【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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