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请打开链接,https://v.qq.com/x/page/v06912xqs47.html。观看视频《亚马逊物流中心:这样的效率简直堪比大片,太震撼了》频,并查阅相关资料,回答以下问题。(1)亚马逊物流中心是如何提高其物流运转效率的?(2)在实际店铺运营过程中我们常用的物流服务有哪些,优缺点分别是什么?
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【单选题】听力原文：You should have listened to me! If we hadn't made the wrong turn, we'd have been on time. They must have waiting too long to be patient. (26)
A.
If we want to be on time and don't let them, we must make a right turn.
B.
Though we went the wrong way and were late, they must have been waiting patiently for us.
C.
Since we're not late, we must have come the right way.
D.
We're late because we went the wrong way.
【单选题】What should we do if there is anything wrong with the clothes we have baught within five days?
A.
Take the bill with you and get a refund.
B.
Ignore it.
C.
Buy another one again.
D.
Quarrel with the shop assistant
【单选题】配合物 [Cr(OH)(C 2 O 4 ) (H 2 O) (en)] 的系统命名法名称为( )
A.
一羟基 一草酸根 一水 一乙二胺合铬 ( Ⅲ )
B.
一草酸根 一水 一乙二胺合铬 ( Ⅲ )
C.
一羟基 一草酸根 一水 一乙二胺合铬
D.
一羟基 一草酸根 一乙二胺合铬 ( Ⅲ )
【单选题】有关电信交换系统的组成,下列说法错误的是:
A.
电信交换系统由信息传送子系统和控制子系统两大子系统组成。
B.
信息传送子系统由交换网络和接口两大部分组成。
C.
交换网络的接口可以分为模拟接口和数字接口两大类。
D.
现代交换系统的控制子系统普遍采用多处理机方式。
【单选题】The poor old consumer! He'd have to pay a great deal more if advertising didn't create mass market for products. It is precisely because of the heavy advertising that consumer goods are so cheap. But...
A.
to introduce their new functions.
B.
to compare them with new products of the same sort.
C.
to tell that they are still available
D.
to correct any impropriate information about them
【简答题】配合物[Cr（H 2 O）（en）（C 2 O 4 ）（OH）]的命名（），配位原子是（），配位数（）。
【简答题】配合物[Cr(OH)(C2O4)(en)(H2O)2]的名称是 ,配位数为 , 中心原子为 。
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