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【单选题】
对 n 个元素的表进行顺序查找时,若查找每个元素的概率相同,则平均查找长度为( )。A.
(n1)/2
B.
n/2
C.
(n+1)/2
D.
n
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【简答题】Complete the following sentences by filling each blank with an appropriate word from the words below. Change its form if necessary. Some of the verbs maybe use that more than once. vary differ illustr...
【判断题】The active voice is generally preferred in writing a research paper, but for the Method section, the passive voice is widely used.
A.
正确
B.
错误
【判断题】The active voice is usually used when the equipment has performed an action.
A.
正确
B.
错误
【简答题】Page 1 in textbook 5-5 Describe how online purchasing has changed the business-to-business marketing process and discuss the advantages and disadvantages of electronic purchasing.
【简答题】Complete the following sentences by filling in each blank with an
appropriate verb from the box below. Change its form if necessary. Some
of the verbs may be used more than once. vary, differ, illus...
【简答题】List the questions that you had a hard time to grasp even after reading the chapters in the textbook and watching the lecture videos. Please indicate the corresponding slide number for your questions....
【判断题】The active voice is used to describe the action. The passive voice is mainly used to describe the state or the result of the action. (T/F)
A.
正确
B.
错误
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