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【单选题】
在shell编程中,单引号(``)引起来的是()字符A.
普通字符
B.
特殊字符
C.
无效字符
D.
没有任何作用
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举一反三
【单选题】is defined as the buying and selling of products and services over the Internet. It had included the handling of purchase(67)and funds transfers over computer networks from its inception.
A.
Electronicmail
B.
Searchengine
C.
Multimedia
D.
Electroniccommerce
【简答题】Shenhua Company Ltd (Shenhua) has been buying products from Kangyi Chemicals Company (Kangyi Chemicals) for more than one year. By the end of 2013, the two parties negotiated to settle the previous bu...
【简答题】数据管理技术的发展经历了3个阶段
【单选题】How do you pay for the products when buying them from Amazon?
A.
By cash.
B.
By Paypal.
C.
By credit card.
D.
By check.
【简答题】数据管理技术的发展经历了哪些阶段
【单选题】Abstain from buying those products which are available in the market in excessive packaging because_______?
A.
this act will courage the manufacturers to use excessive packing material, you can save a lot of carbondioxide from entering the atmosphere
B.
this act prevent the manufacturers to use excessive packing material, and you can save a lot of carbondioxide from entering the atmosphere
C.
this act will discourage the manufacturers to use excessive packing material
D.
All above.
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