【单选题】A further ____________ of the shipment will not be considered by our end-users.
【单选题】Our end-users are complaining about the ______ quality against us.
【单选题】We find it impossible to ask our end users to ________ the delayed delivery.
【简答题】(a)设(k ij )是无穷矩阵使得 (2) 证明(k ij )表示一个有界线性映射F:l ∞ →l ∞ ,F的定义如下 ,i=1,2,…, (3) 这个级数对于所有i≥1和l ∞ 中的x都收敛。 (b)另一方面,若无穷矩阵(k ij )使得(3)式定义了从c 0 到l ∞ 的映射,证明(2)式成立。
【单选题】Our end-users are complaining _________ the inferior quality against us.
【单选题】Our end-users are complaining _______the inferior quality against us.
【单选题】公路工程基本建设项目可由一个或多个()组成。