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【单选题】

5. In the early days letters were generally not prepaid. The person ________ the letters paid the mailman when the letter was delivered.​

A.
receiving
B.
received
C.
sent
D.
sending
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【简答题】5. The UPU has been a s agency of the United Nations since 1948. (--requiring or involving detailed and specific knowledge or training)​
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【单选题】8. 顾客对顾客的电子商务模式：Business-to-Bussiness (B2B)
A.
正确
B.
错误
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【单选题】6. The system was ________ though as it required the mailman to find the recipient and collect the money, or if the recipient refused the letter, it had to be sent back to the originating post office ...
A.
inefficient
B.
ineffective
C.
efficient
D.
effective
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【简答题】7. A number of s are held worldwide annually to celebrate the day, including displaying UPU posters, d speeches, organizing letter-writing competition. (--to state in a formal manner)
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【简答题】2. In addition to a note of what is being purchased and updating the order d________, the shopping cart performs several other tasks. (a collection of data that is stored in a computer)
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【单选题】7. It was not until the early 1940s that stamps were first ________ to the Postal system.
A.
invented
B.
inclined
C.
introduced
D.
induced
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【简答题】8. In addition to the three-year poster c _, high ranking officers in many countries also make speeches or issue proclamations. (--an organized course of action to achieve a goal)
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【单选题】2. Informed Delivery is not available to residential consumers in Hawaii.
A.
正确
B.
错误
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【简答题】3. Effective l________ is the key to a successful e-commerce business. (the business of transporting and delivering goods)
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【单选题】8. Because of the development of technology and electronic substitution, the mail volume has decreased ________.​
A.
conservatively
B.
considerately
C.
concisely
D.
considerably
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