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【简答题】
To tell you the truth, it's very hard for us to help them get rid of Interact addiction．But we ________ on this problem trying to improve the situation.
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【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
【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】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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