在等差数列40,37,34,…中,第一负数项是( )
A. 第13项
B. 第14项
C. 第15项
D. 第16项
等差数列1,-1,-3,…,那么-89的项数是( )
A. 92
B. 47
C. 46
D. 45
等差数列的第1项是7,第9项是1,则它的第5项是( )
A. 2
B. 3
C. 4
D. 6
宁波翱翔服装有限公司向德国某贸易公司出口服装一批,在双方函电往来中就品质条款达成如下意见:“Quality of the goods shall be strictly same as samples which are designed and made by the seller according to the samples provided by the buyer and confirmed by the latter before the end of Dec, 2018.”下列选项表达与该条款中画线一词“samples”意思相符的是( )
A. the confirmation sample
B. the seller’s sample
C. the counter sample
D. the buyer’s sample