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【多选题】
假设用户当前目录是:/home/xu,现需要返回到用户主目录,则下面哪几种命令可实现这一目的。( )A.
cd $HOME
B.
cd HOME
C.
cd
D.
cd ~
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举一反三
【单选题】(From the Reading, not video) What are the three things that you must balance in order to have a successful Customer Acquisition campaign?
A.
Frequency, delight and profit.
B.
Customer loyalty, delight and profit
C.
Position on the Technology Adoption Life Cycle, customer acquisition costs, and delight
D.
Patching leaks in the sales pipeline, delight, and lifetime value of a customer.
E.
Customer acquisition costs, Lifetime value of a customer, and delight
【单选题】What must the customer do to obtain the service?
A.
Get a subscription
B.
Order over the Internet
C.
Contact a sales representative
D.
Call for a consultation appointment
【单选题】In order to be able to give the customer 15 percent discount, the salesman says he must see his company manager.
A.
True
B.
False
【单选题】What information must the customer give?
A.
An address
B.
A phone number
C.
A membership number
D.
A credit card number
【简答题】谐波齿轮传动有何特点?基本组成有哪些部件?
【简答题】谐波齿轮传动有何特点?基本组成有哪些部件?
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