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【单选题】
下列的时间复杂度为()。A.
O(3n)
B.
O(n)
C.
O(n2)
D.
O(log3n)
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【单选题】我国现行的建安工程直接费中的材料费与国外建安工程费用中的材料费相比，前者包含而后者不包含的费用是( )。
A.
周转材料摊销费
B.
材料采购费
C.
材料预涨费
D.
税金
【单选题】若函数y= (a-b) +ax+b是y关于x的二次函数，则 [ ]
A.
a、b为常数，且a≠0
B.
a、b为常数，且b≠0
C.
a、b为常数，且a≠b
D.
a、b为任意实数
【单选题】What is the probable result of the conversation?
A.
The man went downstairs to talk to the neighbour.
B.
The woman turned off the radio.
C.
The man failed his English exam.
【简答题】阅读理解。 Now, China has the second largest number of Internet users in the world after the United States. Many of Chinese Internet users are agers. They spend about 13 hours every week online. On the...
【简答题】阅读理解。 Now, China has the second largest number of Internet users in the world after the United States. Many of Chinese Internet users are agers. They spend about 13 hours every week online. On the...
【简答题】半透膜:
【简答题】accomplish something successfully, especially by working hard
【单选题】Which of the followings can the users do, thanks to wireless Internet access?
A.
Read and send e-mail.
B.
Browse the Web and even watch short dramas for cell phone users.
C.
Download music, games and video files.
D.
All the above.
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